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Standard Karthus Mid Guide [8.18]
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Threats & Synergies
Dodge his (Q) Mystic Shot or (W) Essence Flux and you should be able to win.
Unless he turns on his W, he's forced to come into your range to farm, just poke him if he does so and avoid his Q.
Once Karma's (E) Inspire runs out, she's easy to catch and fight, avoid her (R) Mantra + (Q) Inner Flame combo to avoid heavy damage.
He has terribly low range until level 6, poke him whenever he goes for a last hit.
Just an annoying amount of poke, after Tier 1 - 2 boots, his spells should be easy to dodge and to initiate an all-in on him.
Just very tanky to play against, rush magic pen items and it should be all good.
Once you get hit by her (Q) Dark Binding after level 6, it might as well end up a death due to the long duration and high AP scaling combined with her (R) Soul Shackles. Dodge her Q and wait out her (E) Black Shield before engaging on her 1 on 1.
Dodge her charm, and make sure to avoid letting her maximize her Essence Theft spell vamp. Bait out her ultimate and ask your jungler for ganks before going in.
Harass him whenever he tries to go for last hits before level 3 - 6. Do not ever let him use his Q on you in melee range as it guarantees a crit from it. Avoid fighting him unless you have Exhaust up.
Try rushing boots and Hourglass to avoid her balls and her (R) Unleashed Power. Exhaust is also a good summoner spell to nullify her ultimate.
A good Azir will always harass you whenever you're going for last hits, try farming from afar and force him to come forward to try and punish you for farming and turn that against him. Try Rylai's so that he can't kite you with his soldiers that easily.
High poke, CC and True damage, avoid getting hit by his abilities and Hourglass to avoid his ult.
Rush boots early if you find it a hard time to dodge his abilities. Avoid getting hit more than 2 of his abilities as his 3rd ability hit on you will proc a circle around you which will detonate for more damage.
Better Karthus wins.
Rush Morellos, hourglass and magic pen items as he is likely going Visage and you need hourglass to nullify his ult damage. His (W) Sanguine Pool counters your (R) Requiem so if you're planning to ult him, be sure he doesn't have his W.
Only strong after 6, before then abuse her lack of range.
Her ultimate can either be a hard CC spell or a spell to counter your ultimate, whenever she uses her E, scram from it in case she engages on you when her jungler is nearby.
Has equal if not higher range than you by a bit with his (E) Death Ray. Try avoiding his E and don't fight him with his 2nd augment ready until you have Rylai's to slow him. His ultimate cancels yours so beware when casting your ult in lane to catch stragglers in other lanes.
A good TF won't bother fighting in extended trades with you, but instead harasses you with Q or red card. You outscale him late game but whenever he's missing from your lane and he's 6, ALWAYS notify your teammates as possibly he might be looking for a feasible gank at another lane. Farm from afar and avoid going into his W range in case his jungler comes for a gank.
Orianna has similar if not better scaling than you, and has better teamfight contribution with her ultimate. Try to make her fall behind hard early so that she doesn't get her items quickly.
Just stay away from her Q and W to avoid extra damage. All in her once she uses her Shunpo that isn't on a reset kill or a dagger. Exhaust her whenever she uses her ultimate.
Once she hits her E on you between Lv 4 - 9, she will chunk your health from 90% to 30%. After her 2nd item, you will get one-shotted for sure. Avoid getting her by her E. All-in her once she has no spells to take advantage of.
Rush Morello's and avoid his E, he's useless.
Don't come into her spell range whenever she has stun up. If she tries to use a spell to harass you, use your wall to slow her and return the favor. Beware of her flash bear engage as it can one shot you, finish your tear or get Hourglass to avoid the burst.
Dodge her Q and try to all-in her before 6. Even if you proc her passive, it's good enough so that your jungler can come in for a gank to kill her egg or for future ganks. After 6, a good Anivia will use her R to slow you from dodging her Q and blocking your escape with her W. Rush Hourglass to avoid getting chunked.
Be careful of her Q, and her pokish E, if you let her chunk you down she might pull a flash Q engage on you and kill you from there. Get boots early to dodge her poke.
Counters your R with his R, a good Ekko would be able to time his E and Q on you at the same time to quickly get the 3 stacks on you for quick damage and mobility to get out and dodge your spells. Call your jungler for ganks if needed.
Can burst you after 6 with short R cooldown, which can reset if she Rs someone afflicted with Q. Exhaust if you have to and fight her only if her ult is on cooldown.
Do not ever let her land any sort of poison on you as she will out-trade you almost every single fight you go against. Farm from afar and wait for jungler ganks. Rush boots to dodge her Q and W or fancy feeting her R by turning around or using Flash if necessary.
A real yikers for Karthus, will spam bombs like as if he has no costs on them and has an ultimate which clearly counters yours, and has an E which slows you for aeons or speeds him up faster than Keemstar will ever be.
His Double E and Q or W will give him some MS and a shield which makes him almost impossible to trade with especially after tear, you'll need ganks to set him back or farm up, though I would prefer the former since he outscales you better.
(E) Event Horizon literally zones you hard and he scales a lot better than you considering he thrives from stacking minions/champions. Grab hourglass early to counter his (R) Primordial Burst.
Will most likely initiate an all-in at Level 2 - 3 if she's a good Irelia player, avoid giving her an opportunity to do so and avoid her E. Exhaust her if you have to, do not underestimate her burst damage. Her E and R lets her reset her Q and it can do a surprisingly high amount of damage.
A good Taliyah will abuse your low mobility to hit her CC and Qs on you as much as possible and there isn't much you could do about it. Ask for ganks or farm from afar. Rush boots if you have to.
You can use his minions (the one he spawns using his W) to regain some free mana back. Be careful post 6 as he may flash R you while he and his jungler screws you over just because he pressed one button. QSS if you have to.
Definitely has higher range than you in lane, his Q is hard to dodge without boots so rush them, cause if he chunks you down, it will be easy for his jungler to dive you for a freebie. Ask your jungler for ganks and suffer this lane for a bit till you get items.
On-hit Kayle screws Karthus up pretty hard, not to mention her (R) Intervention has 0 mana cost whilst your R costs mana and gets countered by her invulnerability. Bait her ult before fully committing on her.
His passive makes your early trades almost useless against him, and after 6, he can just jump with his (R) Riftwalk and chunk you down or run if your jungler ganks. So your jungler needs to gank your lane pre-6 and set him back before he becomes more broken late game.
High mobility, burst and being untargettable, an equivalent to a tumor. Definitely rush Tier 2 boots and Hourglass to avoid his (R) Chum the Waters, farm up and roam instead of trying to play around with this trickster, he will win you almost 95% of the time.
Can be the most annoying jerkoff after level 2 if you have minions around since he can dodge your Q with his E, as if your Q in general wasn't already easy enough to dodge with basic sidestepping. Fight him when he doesn't have minions to dash around to (if not ahead) or when your jungler ganks your lane.
Can burst you from Level 4 onwards, he's gonna be a pain in the *ss once he gets his 1st lethality item, you can say you lost by default once he gets 6, provided he's a decent Zed player. Rush hourglass and ALWAYS exhaust whenever he ults you. Boots to help dodge his W + E + Q combo.
Soraka's (R) Wish is a legit "no u" to your (R) Requiem.
Unless this LeBlanc is new, there is absolutely nothing you can do to this LeBlanc after Level 2. Q + W burst combined with Electrocute will set you back almost 250 HP. Although she falls off late game and you outscale her, if she's decent, she will make you fall behind to the point that she's so ahead that you literally get 1 shoted by her Q + R combo alone. Try wasting her spells before trying to harass her and definitely get jungler assistance as you won't be able to fight her at almost any point of the game that you're equal or if she's ahead of you.