General Guide by albableat
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Ahri is a manageable opponent, and LeBlanc is listed as a counter to Ahri with good reason. Ahri is based on linear skillshots, and you have the kit to dodge them, outdamage her and punish her hard in lane. However, this matchup depends a lot on the relative skill of you and the enemy Ahri, since she is a force to be reckoned with and she can be a terrifying opponent if she gets strong.
Take care of her Charm, since her full combo can hurt. She can become a true menace at level 6 if you happen to get behind in lane for some reason. Also be careful when her Spirit Rush is up, since she WILL kill you if you don't have W ready and/or tower nearby. Unless you are already fed.
In an equal lane, you are roughly equally useful in teamfights. Your playstyles are similar in fights, so she is an interesting opponent even if you stomp her in lane.
Akali is pretty easy to abuse in lane as long as her Twilight Shroud is on cooldown. Since she usually gets that at level 2, you will want to harass her as much as you can with autos and W level 1. She is melee, abuse it. She can't touch you until level 6 (unless you run into her Shroud, duh), so smack her face and destroy her Creep Score during this time.
You can still outburst her at level 6 if she doesn't have her Shroud (or negaton+ruby crystal or some other tanky stuff), but be prepared to keep your distance and retreat under tower if she jumps on you multiple times, she can hurt.
If you face Akali in toplane she becomes slightly more difficult at level 6 because your "safe zone" (turret) is farther away. You should, however, still be able to juke her 3 Shadow Dance with your W-R and their return parts. She can't hit you if she's dead.
In an equal lane, she will be more useful in teamfights unless you can burst her by then or your team are godlike at focusing.
Anivia is stupid, don't meet her in lane if you can avoid it. She will AFK farm until 20 minutes and then kill your whole team while you might as well just activate spectator mode.
That being said, she is a low-mobility champion who is very mana hungry early, so you shouldn't die to her in lane. If you try to trade autos with her, she will probably come out on top, since her range is greater than yours. Avoid her Flash Frost early on, because it deals ridiculous damage together with Frostbite throughout the game. Also, be aware of her "hidden Q", where she will walk out of your vision and launch her Q at you, because it then shows with a delay and is harder to dodge. Try to stay out of her Q range to avoid this if you know where she is.
It should be relatively easy to make her first health bar disappear, but if she's halfway decent she will play safe so that you can't touch her egg because your skills are on CD and she's lying under her own turret.
Try to steal her blue at level 6 together with your jungler, as this is the single most important part of your lane against Anivia. With blue, it's gg. If she doesn't have blue, you have a decent chance at winning, if you use it to harass her continually and deny her CS. Her Glacial Storm - Frostbite still deals massive damage, so be careful still. You can't dodge that sh*t.
But really, don't go against her. The odds are against you in lane, and later on in the game she is MUCH more useful than you are if you're just kinda even.
I don't know why, but Annie is rarely played in the high ranks, so it is some time since I fought her last. Her autos outrange you, but other than that you are more mobile and your skills outrange her slightly, so use that to dictate where and when you trade.
Still try to harass her early with Q-W since it will deny her retaliation, but care for her stun.
You both have the damage to make each other go 100-0 at level 6, so it mostly depends on who gets their combo off first. If you proc your silence on her and continue to nuke her, you win. If she opens up with a stun before your silence procs, she wins. Be careful, monitor her stun, and nuke her as$.
In an equal lane, you are roughly equally useful in teamfights, but with different strengths.
Brand outranges you on his skills, but both his stun and main damage output are skillshots. Thus, you can win the lane by harassing him while dodging his skillshots by utilizing your moility. His Pyroclasm only hurts if it jumps to you multiple times. Avoid your minions and allies if he uses it.
In an equal lane, you are roughly equally useful in teamfights, but with different strengths.
Cassiopeia has low damage output early, even if you get hit by her poisons. They get strong somewhat fast though, so you should still focus on dodging them of course. Outmaneuver her and abuse her low mobility to win lane.
After level 6 she is able to kill you if she stuns you with her Petrifying Gaze, because she can kill you with Twin Fang before her stun wears off. Avoid facing her ult though, and you win.
In an equal lane, she will probably be of more use to her team due to her long range, DoT and AoE CC.
Facing Diana in lane isn't for the faint of heart, as she is somewhat tanky for an AP mid, and she has multiple gapclosers at level 6. It is a good idea to read the chapter "Gameplay - Toplane" if you face her, because you playstyle will resemble that a lot.
Abuse her low range pre-6 with autos and Q-W-(E). At level 6 you will want to be ready to Q to your turret if she engages on you. Diana is kind of like Akali but with more CC and tankyness, but with no invisibility. You can't 100-0 her, but you can definitely 50-0 her.
In an equal lane, she will be more useful in teamfights unless you can burst her by then or your team are godlike at focusing.
She can still be punished
This video should illustrate how you want to harass Diana while keeping your distance. I also happen to waste some of their jungler's time as an added bonus after I get my FB.
Enemy picked AP or AD Ezreal in midlane, huh? Avoid trading autos with him, since he has loads of AA timer resets and linear skillshots. Harass him only when your abilities are up and focus on dodging his skills, since it can really hurt a lot. He has some mobility, so don't stay and try to get a clutch kill if your Q-R-E only got him down to 15% hp. He can avoid you and punish you meanwhile.
Be careful of his Trueshot Barrage, it deals 350 +100% bonus AD + 90% AP damage, so he can easily finish you off at 30% hp if you don't dodge it. You are not safe until you have more than 30-50% health, that is the single most important thing to keep in mind against him.
He's still squishy by the way.
In an equal lane, you are slightly more useful than him in teamfights, since you are both high-mobility damage dealers, but you have more damage.
Fiddlesticks can harass you from afar with his Dark Wind, and you should avoid getting feared/silenced and then drained by him. He is squishy, so get some damage off on him if you can avoid his CC. He will drain his health back off minions, so keep your silence ready if he tries.
Avoid his ult at level 6, he might try to hide in the bush and then ult into lane followed by his fear and CERTAIN DEATH!
His usefulness in teamfights entirely depend on his ult. If he lands ult->Zhonya's on top of your whole team, you are useless compared to him. If your team avoids his ult, he is useless compared to you.
Facing Fizz requires a great understanding of both LeBlanc and Fizz in order to win the lane. His Playful / Trickster is his strongest defense and offense against you, as he can engage and juke/avoid your burst with it, and it has a 2 sec lower CD than your W. He has an additional dash, so you will have to choose between using R for fleeing or fighting if he engages.
Avoid his Fish Chum the Waters, and immediately use W-R to get away if it hits you, or you are DEAD!
In order to win, you will have to poke him defensively, meaning land free autos, Q's and proc them with either W or E. If you proc the silence and damage with W, immediately return and run away from him so that he can't retaliate when the silence wears off. Remember, he now has 2 dashes while you have 0.
After level 6, the best way to beat him in lane is actually to be somewhat defensive if he is aggressive, because he is a free kill after using his Playful / Trickster.
You generally know when you are going to die against him if you make a mistake.
In an equal lane, it is hard to tell which one is more useful in teamfights. He can dodge and assassinate stuff just like you, but you do it differently. His damage is higher, but so is the risk since he has to go all-in when fighting where you can stay safe while killing.
What, isn't Galio like, a hard counter to LB, you might ask? I mean he's a tanky AP mid who scales with MR and brings strong CC to a teamfight, everything LeBlanc hates!
The above points are actually true, and Galio isn't an easy opponent. However, he isn't too great of a problem to you, since he is not tanky early game (even if he goes mantle+2 pots lv 1, he will lack sustain).
He is melee, so you can abuse him with AA and your abilities since you still deal decent damage and you FRIGGING RUSH VOID STAFF. That's like, countering your counter with your standard build. Also, if he goes pure MR to deal with you in lane, your lovely Darius top will cleave him in 4 hits later on in the game, so it's a win-win.
To get back on track, Galio can only deal damage with his skillshots, which you should be able to dodge. If he uses his Bulwark, stop hitting him until it is gone.
Try to land a lone Q on him and proc it a few seconds later since he will then be silenced and unable to shield against your damage. It takes some time to take him down, but that's no big deal for you. You also get used to that if you play LB toplane anyways.
His usefulness in teamfights entirely depend on his ult. If he lands ult on top of your whole team, you are less useful than him. However, if your team avoids his ult, OR you avoid it and silence him early during the channel, he is useless compared to you.
Gragas is a tough fattie, and it is really hard to bully an opponent who is 3 times your size. His Happy Hour and Drunken Rage grants him some sustain against you, and he has high base health for an AP mid, so you must work on him a lot to get the kill. He can also get away and chase well with Body Slam and is actually a pretty mobile champ.
That being said, he doesn't have the direct damage to kill you, as long as you avoid his Barrel Roll. At level 6 he can kill you if you get knocked into him/his turret/his jungler by Explosive Cask, so be mindful of your positioning.
Heimerdinger should never be picked in ranked games. That being said, he is actually a decent choice against LeBlanc, not only because of his H-28G Evolution Turret that will push you out of lane in no time, but also because of his Hextech Micro-Rockets and their massive 1000 range.
With those, he is able to harass you from a somewhat safe distance. They do not prioritize champions, however, so you can avoid them completely if you have 3 minions between you and him.
To kill him, you must jump at him and unleash your combo like usual, but go back immediately after your first auto, don't try to hit a few more on him. His turrets hurt a lot.
In an even lane he is lulz in teamfights.
Karthus will be the Deathsinger of his own death in this lane. Be on your guard at all times to avoid his Lay Waste, other than that you can go to house on him in lane.
Don't get too close to him without any dashes ready, because his Wall of Pain combined with Defile and Lay Waste will kill you if you don't have any mobility.
Also be wary, he might try to set you up for a jungle gank by farming from far away. Then when you jump in, you will be too deep to avoid their jungler.
A ward might be a good idea for this matchup.
In an even lane, he will dominate you in teamfights unless you can assassinate him in a bad position, away from your teammates.
Kassadin is a tough opponent, and it is a very risky matchup for you. His Void Stone makes him naturally tanky against your combo, his Null Sphere silences up-front for extreme lengths of time, and he deals loads of damage.
You have two advantages in lane which you must capitalize on hard and early:
* Kassadin can't harass you with ranged autos and doesn't reduce any damage from your autos. AA him as much as you can pre-6, his only retaliation will be a single lonely Null Sphere.
* Kassadin has no blink until level 6, so you decide when and where to fight in lane. You are also able to cast both your Sigil of Silence and Distortion before his silence lands, so you can still harass him with that combo, followed by AA. His silence duration is less than 3 seconds at all ranks, so you should still be able to return on your W after the trade.
If Kassadin buys Doran's Shield level 1, you are in for a hard time. You main source of damage comes from AA's all the way through levels 1-5, at that damage is now getting reduced by 15%, plus he gains massive regen and 100 bonus hp, and is thus unkillable. If he doesn't get Doran's Shield, you should be able to win lane early.
In an even lane, Kassadin will be somewhat more useful than you at roaming, laning and teamfighting after reaching level 6. You do, however have a chance to beat him hard enough pre-6 to become more useful than him, and it is very rewarding later on if you win lane. Even a moderate lead early in lane is enough as long as you don't make mistakes later on.
However, remember to take care of his 2.6 sec silence at level 9, no matter how much ahead you are. The silence will make it impossible to escape the onslaught of his teammates rushing at you, resulting in premature death. He can come back in the game fast if you or your teammates die once or twice to him, so a game against Kassadin isn't won before the enemy nexus has exploded.
You can harass Katarina in lane freely with your AA since she only has Bouncing Blades to use at a range, and it doesn't deal much damage unless it is procced. However, starting at level 2, she is able to jump on you with Shunpo in order to deal proc her blades and AA you.
She is resourceless and a decent Katarina will probably try to win lane by being MORE aggressive than you, since you are squishy. In order to win lane, you will have to keep the pressure on her.
The only real trick to this matchup is to NOT use your standard Q-W harass combo after she hits level 2. She can Dodge that combo by blinking to you with Shunpo while you are IN-FLIGHT with W, meaning you won't land the damage or silence proc and Thus lose the trade hard. Save your Distortion until her Shunpo is on cooldown, so you know you can hit her.
Harass her with unprocced Q's ( Ethereal Chains if you can land them) and AA's meanwhile.
After she hits level 6, it is a good idea to save a silence in case she jumps on you and goes all Death Lotus mode.
In an even lane, you MUST shut Katarina down in teamfights. She will wait a bit before going in, so you also have to wait a bit before unleashing your combo. If you pop her, you are most useful. If she gets a kill, your whole team will die. I guess that makes her more useful in that case.
Facing Lissandra can be a tricky matchup. You have the advantage pre-6, since you can dodge her Ice Shard and do your standard harass. She does, however, have a somewhat safe farming range, and her mobility and CC can be a slight problem for you if her jungler decides to show up, so be prepared for anything against her.
After reaching level 6, you will quickly know if you have won the lane or lost it hard. She can then close the gap with Glacial Path, and her Frozen Tomb is a surefire spell that will deal tons of damage and force you to eat her whole combo. (Her base ratios aren't that great, however.) If you survive it (which you will unless she is fed), you can nuke her down, but if it kills you, she will make you her willing
To help you make it through this critical stage, it can be a good idea to purchase double Doran's Ring and an early Haunting Guise, depending on how much extra hp you need.
Alternatively, you can make a rune page with scaling MR glyphs for matchups like this. (the MR isn't needed pre-6.)
In an even lane, she will benefit her team more with her utility and ult than you can benefit yours.
Fighing Lux is all about dodging and aiming skillshots and landing your damage when her Prismatic Barrier is down. It is a true standoff of reflexes & mechanical skill, as you both have the ability to burst each other into oblivion.
Avoid her Light Binding because it deals decent damage and allows her to hit her Lucent Singularity and Final Spark after level 6, which WILL kill you if you're not at 100% hp.
It is especially important not to make obvious jumps directly at Lux, because any decent Lux will root you instantly and dodge your chains, so that you are vulnerable for 2 seconds while she is only silenced for 1.5 (hint: you will die post-6.)
If you manage to stay clear of her root, however, you can deal great damage to her.
Just avoid getting baited by her shield, and many Lux players also pack Barrier to boot, so don't get too greedy.
In an even lane, you are roughly equally useful to your team. It does depend on Lux' ability to land roots and your teams ability to dodge them, however.
A decent Malzahar can be a pain in your butt, because his kit is excellent at farming at a range. If he maxes Malefic Visions first, he will quickly be able to farm a whole wave with that skill only (around level 7) and then AFK @ turret, clear wraiths, take blue, roam, ect. Until then, he can also clear waves fast if he uses all his skills at them.
Your best bet is to go super aggressive on him in the early levels, where he still needs to AA minions to farm. After 6, you still want to combo him if you can come near him, but his Nether Grasp can quickly kill you if he lands his other skills on you before channeling it.
If he tries to use his whole combo, you will have the opportunity to silence him if you're fast though, so ALWAYS use Q-R asap after reaching 6 to prevent his channeling, which gives you 1.5 seconds to land your E. Get back before the silence wears off.
If he chooses to AFK push lane instead of fighting, however, you have no choice but to roam a lot. If this is the case, it is prudent to get Sorcerer's Shoes early instead of Haunting Guise, and you might even want to purchase them before Void Staff, since botlane won't be getting more than 42 MR any time soon.
In an even lane, he will probably save his ult for you in teamfights, which in turn makes you a very dead Leblanc. Guess what, a live Malzahar without ult is still more useful than a dead LeBlanc who never got to use her ult, so try to stay in a safer position whe teamfighting with Malzahar on the enemy team.
Facing Mordekaiser in lane can be a tough challenge, but also very rewarding. His Iron Man can quickly become an impenetrable shield if you allow him to stack it, so you must be super aggressive at all times in this lane, starting at level 1.
He is melee with only a single skill to deal targeted damage at a range, so keep him away from minions and abuse him with AA and Q-W procs, ect. If you do this, you will eventually end up making his shield and lifebar show "0".
It gets truly dangerous if you get ganked, however, as it at the very least gives Mordekaiser room to stack his shield. If you also die by bring ganked, the lane will become almost unsalvageable because he is then able to sustain through your continued harass, and he will eventually kill you in turn.
If everything goes according to plan and you get ahead in lane, this is a very fun lane. Morde will have no choice other than going close to minions to get his farm, but you can whip him with your combo and make him cry "mommy" every time he tries to do so.
Don't get baited by his Children of the Grave, it steals around 10% of your Health up-front after resistances.
It is hard to say which one of you will be more useful in an even lane. It all comes down whether he is able to snowball off you or your teammates with some kills, since he isn't a big threat until then. Keep him shut down throughout the game, don't allow him to become fed.
For the sake of your team, don't face Morgana. Her Black Shield will quickly make it impossible for you to kill her, she can clear waves quickly with Tormented Soil, and her Dark Binding lasts a minimum of 2 seconds, long enough to get you killed if you tank turret/get ganked/are ulted by her as well.
If you do happen to lane against her, try to be aggressive and get a kill or two on her together with your jungler early, since you may then be able to kill her every time she comes back in lane. If you can't get her after a few tries, however, you are doomed. Try to roam as much as possible without losing too many minions in mid, and pray that she can't land a good Soul Shackles later on.
Oh, she is so much more useful than you later on.
Not much to be said about Nidalee. Try to win the harass trades with her and keep in mind that she can use Primal Surge to heal back some of the damage you deal. She is a complete Nidalee (duh) when it comes to mobility, so if you don't kill her instantly or with the chains proc, you won't catch her. Avoid her Javelin Toss by dodging and hiding behind minions, you lose lane if you get hit just a few times. After a while, each spear at long range can easily crack away half of your HP so that you have to b after getting hit just once.
She will try to hit you with "hidden" spears by going into the Fog of War and throwing her spear, since the animation will then barely be visible to you. Hide behind minions if you can't see her.
Both you and her can be complete basterds (best German ever) when it comes to splitpushing, roaming, being dangerous and uncatchable in the jungle, so it is an even skill matchup throughout the game.
Orianna is stronger than you at level 1, so only go for the opening W-AA-W combo against her and then stay at a safe range since both her Command: Attack and AA (with Clockwork Windup) deal significant damage. Try to keep your distance to the ball as much as possible.
From level 2 onwards, you wish to harass her whenever your main combo is up, she can't take too many hits from you.
Take care of her ult after level 6, just stay a bit away from the ball. Take care if the enemy jungler with a long-range gap closer ( Jarvan IV) comes to gank, since she will put the ball on him and ult you that way. If she hits you with that, you are dead. Otherwise try to get as much ahead of her as you can, but take care of her Command: Protect. Some Orianna players also use Barrier, don't get baited.
In an even lane she will become more useful than you lategame, but you will be more useful midgame unless she lands some godlike ults. If you get a lead in lane, you will blow her out of the water at all stages of the game.
95 % of all Ryze players don't know sh*t about countering LB, and I laugh every time I see the enemy team pick Ryze after I blind picked LeBlanc. Every time I see him on the enemy team I see a free win because of their ignorance.
On a more serious note, after looking at some guides, I have learned why every Ryze loses. All Ryze guides says that Tear of the Goddess should be rushed first at all times, and that is bullsh*t. If Ryze doesn't come in lane with some MR or massive sustain level 1 and on first back, you simply nuke him so hard that he is deleted from the fight, and after that you get damage faster than he gets MR/HP and it's GG.
Should the enemy ryze happen to come in lane with Crystalline Flask + 3 Health Potion or some other other high sustain start, you will have to win the trades continually in order to whittle him down. If this is the case, then you can't afford to go into suboptimal trades, but should still be able to handle him if played properly.
He has low range, so you can abuse him if he tries to lasthit, your silence smacks him if he tries to trade with you. Avoid trading at level 1 when your Distortion is on CD, that is the only time he can outtrade you with Overload.
In an equal lane, you are roughly equally useful in teamfights, but with different strengths. (What, Ryze not even better than LB if he survives early? Nope, you can still nuke him or their ADC around late, and he is still pretty immobile. All depends on your teams and playstyles really.)
Dunk that Ryze
Notice that I win the early game despite making quite a few mistakes, for example I let Ryze harass me freely when I enter lane and go for a last hit. You generally have some room for mistakes against your average Ryze (unless he has high sustain start), so he is a good enemy to hone your LB skills against, at least during early game.
I haven't had many chances at fighting Swain in ranked, but it usually ends bad when i meet him, thus the difficulty is just above 4.
Avoid his Nevermove since it allows him to land all of his damage, but otherwise you should be able to win trades early. Take care, however, since all of his skills are Damage-Over-Time, and can be deceptively strong (just like you.)
The real problem arises after level 6 if your are not able to 100-0 him by then, because of his Ravenous Flock that can literally heal it all back in roughly 10 seconds, Thus making him unkillable. If this happens, he will probably farm up to become a huge monster and kill EVERYTHAAAAANG (just like 300 CS Anivia).
If you are ahead and thus able to 100-0 him however, rejoice. He is now no more than another troply to be added to your immense kill count, and you can feast on his teammates afterwards.
Lategame, Swain >>>>> you and your whole team, unless you can 100-0 him instantly.
Talon is a standard mage counter so it should come as no surprise that he is an opponent you must be on your toes against. That being said, I have played a few games against him recently, and you can win if you play decently against him and don't fall behind. Go for Greater Seal of Armor and cloth+5 start, and use your AA to harass him hard early. His only ranged poke comes from Rake which isn't too dangerous compared to your AA, so you should outtrade and outsustain him early. Later on, he can silence and jump to you instantly, so you must be able to survive some hits (get Seeker's Armguard).
As with Katarina, he can jump to you while you are mid-flight with Distortion, so don't use your standard Q-W harass unless his Cutthroat is on cooldown. He should max it last and it has an 18 second cooldown at level 1, so you have quite some time to punish him after he has used his jump on you.
If this lane gets out of hand one way or another, it is easy for you to snowball and easy for him to snowball, so don't take too big risks early game. If you should happen to get dunked hard, you can get Ninja Tabi IF the enemy team is almost purely AD.
In teamfights, you have similar roles. He has a instant, targeted silence, more AoE damage and invisibility, but you have more mobility and range. He has to go all in to be useful while you don't so your usefulness depends on the nature of the team fights.
Twisted Fate is an interesting matchup for you, but it sadly often ends up in tears and flaming from your teammates.
In lane, you beat Twisted Fate hands down, harass him as much as possible but avoid getting caught off guard by his Pick A Card Gold Card. He will probably choose to keep a safe distance and only lasthit with Wild Cards or while standing under turret, so you will get ahead in CS.
The problem arises when he reaches level 6, which he eventually will.
By then, he will gank your botlane with Destiny, and you must ping MIA at all times. Anyways, they will usually feed him a double kill because they are too busy mindlessly pushing and trading hits with the enemy botlane to notice your "MIA". Afterwards they will flame because they got ganked, their morale will go to hell and they will lose the lane.
Now, TF will also be able to do whatever he pleases, because he just got ahead of you by 600 gold and can now farm your teammates for the rest of the game since they don't understand that turrets grant them safety.
This is the worst case scenario, since he might not be able to gank because you dunked him early, or if de does gank he might not get a kill during his first gank, or your teammates might not flame even if he does get a kill, ect. Having good teammates plays a big part in this matchup.
Anything short of shutting him completely down requires you to rely heavily on your teammates (AKA luck) in order to win, and that is why he receives a whopping 3.75 difficulty since you can almost never shut him down hard enough to keep him off your teammates, and he wins the roaming game over you because of ult.
In an even lane, he will rape your team midgame unless they are godlike or something.
If you make it through midgame into late, you will be more useful than him in teamfights, but take care of his splitpushing potential. You may or may not be able to countersplit against him since you got more damage and mobility after he has used his ult.
AP Tristana has some huge base dmg and AP scaling ([[Explosive shot has 110 base dmg and 100% AP scaling), so she can quickly kill you if she lands all of her stuff on you.
In this matchup, Greater Glyph of Magic Resist may be a decent choice if you're not confident you can avoid her big shots (she has targeted skills, so that's a tough one :p).
That being said, you wish to grab some early hp (2x Doran's Ring, maybe rush Haunting Guise), and then kill her like the rest.
Tristana is squishy, so get in there and smack her face. She has Rocket Jump and Buster Shot to jump and knockback, so you only have a short windows to burst/silence her.
Her ult deals 300 + 150% AP damage, so be careful when she hits 6, don't stay around at too low health, she can easily deal 700 damage after resistances by then. (+ maybe Ignite)
In an even lane, you are the better teamfighter unless she gets reset on her jump all the time.
Veigar is a squishy, low-mobility champ whom you can harass at all times, so smack him in the mouth.
Avoid getting stunned by his Event Horizon, since he can the follow up with Dark Matter which really hurts a lot later on.
Also be careful of his Primordial Burst at level 6, his Q-R combo can easily deal 600 damage.
You can still silence and abuse him after hitting 6, just keep your HP somewhat high to be safe.
In an even lane, he can dunk you OR any other AP/ADC on your team. He's not as mobile as you, so you still bring much more to the team than he does. Just focus him first, if possible.
Viktor is a very rare matchup. Avoid his Death Ray and you should do just fine. Don't stand still in his Gravity Field either (duh).
Harass him like you would any other champion, and keep his head down in the mud.
At level 6 you may wish to save a dash or stay at a range as long as W is on CD to avoid his Chaos Storm, the damage it deals over 7 seconds adds up.
I guess Viktor is decent at teamfighting, but in an even lane, you are still better late.
Xerath can be a tough opponent if you don't get the upper hand somewhat early. He has a safe farming range (His Q has 900/1300 range versus your 700 range Q), but is a low-mobility champ.
Dodge his Arcanopulse and you are safe pre-6. He can't fight you well, but due to his range you will often have to use Distortion to get in range of him, and then follow it up with Sigil of Silence and land your Ethereal Chains to proc it. You may or may not have to jump under turret range to land this, but you shouldn't get hit by any more than a single turret shot.
After 6, he will be able to punish you hard if you make a false movie, as it is shown in the video earlier in this guide. His full combo including Arcane Barrage can deal around 900 dmg lv 6, and he doesn't care if your Mirror Image triggers, he just pops both of you with his AoE.
You can still kill him if you get in on him first, however, so you have to play passive-aggressively this lane.
Late game he will be more useful than you and can deal massive damage in a well-organized teamfight, but you have better splitpush and mobility, which can be better if you avoid the full-on, clustered 5v5 fight.
Ziggs Has a decent harass/farm range with his Bouncing Bomb (up to 1400). Avoid his bombs and harass him like any other enemy.
His Short Fuse enhances his first AA greatly, so either trade quite a few AA at a time or avoid trading AAs altogether.
At level 6, you must avoid his Mega Inferno Bomb. You are not safe unless you are at base or his bomb is on cooldown, so be ready with your dash if you are low.
In an even lane, you are slightly more useful in teamfights.
Zilean is a somewhat rare matchup. His Time Bomb deals decent damage and can be cast twice in a row due to his Rewind, so only trade with him while it is on cooldown or if your combo is ready.
Otherwise you must harass him whenever you get the chance, but don't get caught by ganks without your W ready, since his Time Warp slows you A LOT.
At level 6 you don't wish to burst him if he has used Chronoshift on himself, instead you must wait until it wears off.
In teamfights you are stronger, UNLESS Zilean manages to save their ADC or target you're focusing with his ult. An enemy Vayne with Guardian Angel + Chronoshift sucks.
Even though Zyra is listed by Riot as a mage (midlane), she is usually played as a support. She is still viable in midlane though, and if you face her, you must avoid getting rooted by Grasping Roots and avoid getting attacked by her plants.
Other than that, you can harass her like any other opponent, and she has no escapes.
After killing her, take care of her Rise of the Thorns if you're low. There's no need to make it a 1 for 1 trade.
In an even lane, she brings decent CC and damage to her team. Your mobility and utility makes up for that, so you are still more useful in teamfights unless she lands her ult on 4-5 people.