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Katarina Build Guide by Mobabear

This build has been archived and is for historical display only.

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Not Updated For Current Season

This guide has not yet been updated for the current season. Please keep this in mind while reading. You can see the most recently updated guides on the browse guides page.


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League of Legends Build Guide Author Mobabear

Bladedance Katarina

Mobabear Last updated on August 5, 2013
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Ability Sequence

1
8
10
12
13
Ability Key Q
3
4
5
7
9
Ability Key W
2
14
15
17
18
Ability Key E
6
11
16
Ability Key R





Not Updated For Current Season

The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.



Masteries

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1/
Executioner
 
 

Offense: 21

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Honor Guard
 
 

Defense: 9

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Pickpocket
Intelligence
 
 
 
 
 
 
 
Nimble
 
 

Utility: 0


Guide Top

Introduction

Welcome to my Katarina AP build. This is Carebear and this is a build for Katarina, the Sinister Blade. I hope that after reading my guide, you will be more enlightened on AP Katarina and how to play her. Please take note that this guide is meant to guide you, but not to fully alter your gameplay. I discontinued this guide from my old account WhySoYummy, because I changed my name to Carebear and so I decided to just continue editing the guide here.
  • This build covers AP mid for Katarina
  • Please note that this build may not work for every game, as each game is different
  • This build is still a work in progress


Guide Top

Katarina, the Sinister Blade

Some video backgrounds for Katarina~


Guide Top

Pros / Cons

Pros

+ High burst damage
+ Abilities work hand in hand, AoE spells
+ No mana
+ Amazing passive
+ Shunpo gives mobility
Katarina is a great AP choice. She has no mana, so she can spam away while most AP champions will find themselves mana-choked. Her Shunpo gives her an easy lane when fighting champions like Ziggs. She can deal lots and lots of AoE damage and her passive, Voracity can turn a losing team fight to victory.

Cons

+ Melee AP champion
+ High early game cooldowns
+ Tends to be focused first
+ Squishy
Although Katarina is an amazing champion, she has shortcomings like any other champion. First of all, she's a melee AP when most others are ranged, which can turn to a disadvantage. High cooldowns in early game can also interrupt her farm. Though she tends to be focused first and is squishy, her kit makes up for that.


Guide Top

Runes

Runes

Greater Mark of Magic Penetration
9
  • Greater Mark of Magic Penetration is a must have for most AP assasins, and Katarina is no exception as all of her abilities scale with AP. The extra Magic Pentration gives a nice boost to your damage output, and it will help deal the maximum damage output possible.
Runes

Greater Seal of Scaling Health
9

Greater Seal of Armor
9
  • Greater Seal of Scaling Health is for more sustain since Katarina's pretty squishy early on.Since I am a mid-laner,I level up fast and get immediate results from these seals.These are great as they allow you to get way more health than flat ones at level 18.These can also be substituted with Greater Seal of Armor if the enemy is more on physical damage or if you play aggressively and would like to take less damage from minions,but I still think Greater Seal of Scaling Health is really much more viable.
Runes

Greater Glyph of Ability Power
9

Greater Glyph of Magic Resist
9
  • Greater Glyph of Ability Power works well for extra damage early on because of the boost it gives.These give about more than 10 ability power which is a good early game jumpstart.
  • Greater Glyph of Magic Resist is very useful in mid against early game harrasers such as Annie or even Orianna. I prefer this over Scaling Magic Resist as this gives the needed magic resist necessary for early game.
Runes

Greater Quintessence of Ability Power
3


Guide Top

Masteries

Masteries
1/5
4/1
4/5
3/1
1/1
3/1
4/
1/
4/1
1/1
3/5
1/1
Mastery Explanations

I use a 21-9-0 Mastery Setup on Katarina, taking all the AP Offensive Masteries, and extra health, magic resist and armor on the Defensive Side. I take these masteries because the early game is also a deciding factor on he outcome of the game, so these masteries give both offense and defense to help you do well.

space

OFFENSE TREE


Tier 1 // Summoner's Wrath for bonus AD and AP when Ignite is on CD. Sorcery for the CDR, and you will be able to get Arcane Knowledge .

Tier 2 // Blast for more AP.

Tier 3 // Havoc for more damage, and Arcane Knowledge for the MPen which helps early on and will synergize well with your MPen Marks and Sorcerer's Shoes

Tier 4 // Mental Force for more AP.

Tier 5 // Archmage for overall increase in AP.

Tier 6 // And lastly, Executioner for even more damage.


DEFENSE TREE


Tier 1 // Durability for more health to sustain you.

Tier 2 // Hardiness for a bit of Armor against Atttack Damage, and Resistance for Magic Resist against who you are laning against

Tier 3 // Veteran's Scars for more health.

space

Summary

On your Offensive Tree, put masteries for everything that will improve you AP damage and magic related stats. This includes Ability Power, Magic Penetration, Cooldown Reduction and Overall Damage.

You will have:
  • +5 AP and AD when Ignite is on cooldown.
  • +4% Cooldown Reduction
  • +8% Magic Penetration
  • +2% increased damage
  • +5% damage dealt to targets below 50% health
  • Bonus Ability Power [+18 at level 18 (+1 per level), +6 flat AP, +5% Ability Power]
On your Defensive Tree, there will be emphasis on Health, Armor and Magic Resist which is primarily for early sustain and defense

You will have:
  • +5 Magic Resist
  • +2 Armor
  • Bonus Health [+108 at level 18 (+6 per level), +30 Health]


Guide Top

Summoner Spells

Recommended Summoner Spells
























SPACESPACE
Flash is the summoner spell I usually take, because of it's great utility. I can use it to escape through walls and terrains, and to chase or initiate team fights as well. I find this much better than Ghost. Although Flash is very useful, I can also do without it because of Shunpo.



Ignite is very useful as Katarina's passive, Voracity works on kills and assists. Of course in battles and team fights I need to activate Voracity as much as possible in order to use it to it's full potential. This is where Ignite comes in. With Ignite, I have less trouble in bursting down foes and gaining stacks on Voracity. With the mastery Summoner's Wrath , it also gives a 5 AP bonus which is not that bad in the early game.


Less Viable Summoner Spells


Teleport is less viable because although Teleport seems to be a good mastery with Katarina, but Flash is generally a better choice because of it's possibilities of becoming an escape mechanism, an initiation tool and many more. However, Teleport is not that bad so feel free to take it if you feel the need.

Exhaust is useful when you are picking off lone targets or if you notice that your enemies are generally built on physical damage, Exhaust can be helpful to cut down their damage or to slow them to get away.

Cleanse is also an okay spell to take, but it is very situational and should only be taken if you notice the enemy team is jam-packed with CC champions. In addition to that, your Death Lotus would have been canceled before you are even able to use Cleanse.
Other summoner spells would not really help Katarina that much.
SPACESPACE
























Guide Top

Skills and Skill Sequence

Ability Sequence
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Sinister Steel
Voracity
(Innate): Scoring a kill or assist will reduce the cooldowns of Katarina's abilities by 15 seconds.
Spoiler: Click to view
Bouncing Blades
(Active)Katarina throws a dagger that bounces quickly from enemy to enemy, dealing magic damage and marking them. Each subsequent hit deals 10% less damage. Bouncing Blades hits a total of 5 unique targets (4 bounces), each striking the closest next target [Dagger Magic Damage: 60 / 85 / 110 / 135 / 160 (+0.45 per ability power)].
Striking a marked target with an ability or basic attack will consume the mark to deal additional magic damage [On-hit Magic Damage: 15 / 30 / 45 / 60 / 75 (+0.15 per ability power)].
Spoiler: Click to view
Sinister Steel Sinister Steel
(Active): Katarina whirls her daggers around her, dealing magic damage to all enemies in the area [Magic Damage: 40 / 75 / 110 / 145 / 180 (+0.25 per ability power) (+0.6 per bonus attack damage)]. If she hits an enemy champion, Katarina gains Movement Speed for a short duration [Movement Speed: 15 / 20 / 25 / 30 / 35 %].
Spoiler: Click to view
Shunpo
(Active): Katarina instantly moves to her target's location and takes 15% reduced damage from enemies for 1.5 seconds. If the target is an enemy, she deals magic damage [Magic Damage: 60 / 85 / 110 / 135 / 160 (+0.4 per ability power)].
Spoiler: Click to view
Death Lotus
(Active): Katarina becomes a flurry of blades, channeling for 2 seconds throw up to 30 blades to nearby enemy champions. Katarina throws up to 10 blades at 0.2 second intervals, dealing magic damage and applying Grievous Wounds to the closest 3 enemy champions [Magic Damage Per Dagger: 40 / 50 / 60 (+0.2 per ability power (+0.3 per bonus attack damage)), Maximum Magic Damage to the Same Target: 400 / 500 / 600 (+2.0 per ability power) (+3.0 per bonus attack damage)]. Grievous Wounds lasts for 3 seconds and reduces incoming healing by 50%. An enemy champion can be hit by a maximum of 10 daggers over the 2 seconds.
Spoiler: Click to view
Ability Sequence
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Sinister Steel

R < W < Q < E



#1
SPACE As with all ults, Death Lotus should be leveled up whenever it's up at levels 6, 11 and 16. Dealing the most damage and being the most deadly, Death Lotus has the highest priority out of all of her abilities because this is her killing move and essential in team fights or singe-target bursting, thanks to its low cooldown, high damage and ability to apply Grevious Wounds.
Sinister Steel
#2
SPACE For the most part, I max Sinister Steel before Bouncing Blades and Shunpo. Why? Because though Bouncing Blades has better poke and harass, at a four second cooldown, Sinister Steel becomes more useful, as Bouncing Blades can only be used sparingly. And with increased damage and a speed boost, I feel that maxing Sinister Steel first is more useful, as you'll be using it much more often not only for the AoE damage, low cooldown and speed boost, but also for its ability to detonate Bouncing Blades marks.

#3
SPACE It's more of a personal preference to max W first, but I agree that you should put a point in Bouncing Blades early on because it's your most useful laning tool. It's your only reliable ranged attack, and it's useful for harass and farm. The extra damage you get levelling it up makes it easier to farm, and Bouncing Blades can start very devasting combos. As I stated though, Sinister Steel has higher priority because it will be used more often and is more useful in fights and it's your best way to detonate the marks of Bouncing Blades. I believe that maxing Bouncing Blades first takes away your ability for close combat aggresiveness and burst potential. Take it a Level 1 for poke, harass and farm, then max it by Level 13.

#4
SPACE It's important to have Shunpo during the laning phase because of it's amazing utility. However, being the only single-target ability of Katarina, having high cooldowns, and dealing the lowest overall base damage, max Shunpo last. For the most part, Shunpo is mainly used for its utility, not so much in its burst damage or killing ability. With that, have one point early on for its incredible utility, but max it last at level 18.
Sinister Steel

R < Q < W < E


If this ability sequence does not work for you and if you find maxing Bouncing Blades is more viable once the situation arises, or if you just don't like maxing sinister steel first, then it's fine. It's more common for more people to maz Bouncing Blades before Sinister Steel for better last hitting, harass and poke. The ability sequence really depends on the person playing the champion,and different abilities work against different opponents.


Guide Top

Item Build Sequence

Item Build Sequence

Staring Items


The safest option with Kat is to start off the game with Boots of Speed and 4 Health Potions

Boots of Speed is a common starting item, useful early on for the extra speed which you can use for getting to lane, roaming, avoiding skillshots, chasing and escaping. Plus, you build the boots into part of your main build.

Ever since they decreased its price, people usually take 3 health potions and 1 mana potion, but well....Kat doesn't really have mana. This option gives you a safer and good early game with a bit of sustain.
Other Starting Options

Early Game Items


This item is what you start building for early on, while still during the laning phase. Get Haunting Guise to give you some extra health and MPen with a dash of AP to sustain in your lane better. If the situation calls, you can build Haunting Guise into Liandry's Torment as well.

Core Items

I take this ahead of Abyssal Scepter if I'm doing well, and vice versa if I'm not doing too well. This item can help me gank and kill better because of the good AP it gives, the CDR, and the active which is not bad at all. I buy Abyssal Scepter first if I think I need some early on magic resist. I can also trade this for Quicksilver Sash depending on my situation.
Late Game

Usually, I take Rabadon's Deathcap first if I'm doing well and not dying much. If I need the armor or sustain Zhonya's Hourglass gives, I take that ahead of Rabadon's Deathcap. I take both items later on because of the massive AP it gives, and the great active Zhonya's Hourglass has. Void Staff helps penetrate the extra magic resist the enemies would most probably build later on.
Elixirs

I always try to make it a point to pick up Elixir of Brilliance whenever possible. It gives extra AP and CDR which can be really helpful, at a cheap price of 250. I take Elixir of Fortitude only when I have some more extra gold and need some extra health. Needless to say,
I prioritize Elixir of Brilliance over Elixir of Fortitude.
Sight Wards
Sight Ward
With some extra slots and cash, I buy Sight Wards. Not only does this help me avoid possible ganks, I can also chase with these or even escape over terrains, using Shunpo. These cheap items can be lifesavers.


Guide Top

Final Item Build

Final Build

Spacespace Sorcerer's Shoes
Spoiler: Click to view
Spacespace Abyssal Scepter
Spoiler: Click to view

Spacespace Deathfire Grasp
Spoiler: Click to view
Spacespace Rabadon's Deathcap
Spoiler: Click to view
Spacespace Void Staff
Spoiler: Click to view
Spacespace Zhonya's Hourglass
Spoiler: Click to view

Unique: +15% CDR
Unique:
Enhanced Movement:
+45 movement speed
Item cost:
1000g (675g)
SPACE

IONIAN BOOTS OF LUCIDITY


  • CDR comes off at a cap at 40%; Deathfire Grasp grants 10%, Sorcery grants 4%, an Elixir of Brilliance grants another 10% and having Blue Buff grants you 20% which is more than enough. Kat doesn't even need 40% to do her job well.
  • CDR isn't that important on Katarina because she is a BURST MAGE, not a DPS. She relies on casting all of her spells at once, not throwing them out as soon as they're off cooldown.
  • Voracity also refreshes three of her abilities' cooldowns, which lessens the need for CDR, as it also shortens her ults cooldown.
  • MPen is more useful for boots early on, as you wouldn't have Void Staff yet, plus MPen is more useful, as you deal more overall damage which is better at netting kills.
  • You don't put boots from Ionia on this Noxian Assassin. -_-


+80 AP
+500 health
Unique: Spell damage slows
the target by
35% for 1.5
seconds (15%
for multi-target
and DOT spells).
Item cost:
2900g (605g)
SPACE

RYLAI'S CRYSTAL SCEPTER


  • Health isn't very important and useful on Katarina because you shouldn't even be in taking hits and becoming a tank for damage.
  • Gold:AP ratio is terrible. The AP is by little for such a costly item.
  • Only one of your abilities, Shunpo, brings out the full potential of the slow, and it comes at a generally long cooldown. Also, since you focus on BURST, you aren't meant to be chasing enemies or slowing them, as the slow isn't very effective for you unlike someone like Cassiopeia who have to be sticking around a fight longer.
  • This item would be more useful for picking up later in or if the game is dragging out.


+50 AP
Unique: Nearby
allied champions
gain +30AP and
+20% spell vamp.
(1100 range)
Item cost:
2550g (585g)
SPACE

WILL OF THE ANCIENTS


  • Building Kat is more focused on raw power rather than sustain as she relies on burst.
  • However, if on an AP-Heavy team this item is very effecient
  • This is better on DPS Champions, like Cassiopeia or Ryze
  • It's not a bad item, really. However, there are better items for your build.


+45 attack damage
+65 ability power
+12% life steal
Passive: Unique: +20% spell vamp
Unique:Reload: Your basic attacks
and single target
spells against
champions reduce
the cooldown
of this item
by 3 seconds.
Active Unique
Active: Deals 150
+40% of your AP
as magic damage
and slows the
target champion's
movement speed
by 40% for 2
seconds. 60
second cooldown.
Item cost:
2550g (585g)
SPACE

HEXTECH GUNBLADE


  • This item is mainly for HYBRID Champions with better AP:AD ratios like Akali and Evelynn, unlike Katarina whose build must focus on building AP.
  • Life Steal is practically useless on Kat because later on, you're practically never auto-attacking.
  • The item is pretty costly early on, and the AP it offers is not substantial enough.
  • The only time AD will be used is when you use Sinister Steel and Death Lotus, but even then, it would be better to build full AP.
  • You need some AP early on, so ou could poke, last hit and harass better, but the AP this offers is quite little. This is more evident when using Bouncing Blades.
  • Ever since its nerf, Hextech Gunblade is not quite as viable on Kat anymore because it doesn't focus as much on AP.
  • It's not easy for you to be procing Reload.


+20 AP
Unique: Your
champion gains
8AP per stack,
receiving 2
stacks for a
kill or 1 stack
for an assist.
This effect can
stack 20 times;
you lose a third
of your stacks
if you die. At
20 stacks, your
champion gains 15%CDR.
Item cost:
1235g (800g)
SPACE

MEJAI'S SOULSTEALER


  • Ignoring the Passive, the actual item doesn't offer very much for what it costs.
  • You may argue that at five stacks, the thing is worth a whole lot more than it costs, but the trouble is that the stacks are very unreliable. This item is a pretty risky hit or miss, as getting a lot of kills are required. Don't be expecting to pick up an instant 10 kills just because you have a Mejai's Soulstealer.
  • Having this makes you a target for the enemy team, more than you already are. Before you know it, Jungler never leaves mid and you keep losing stacks. May as well buy a sign that says, "Come at me, n00bs!1on1!!!"
  • Dying really cripples you, and you aren't exactly durable.
  • It's only good for picking up kills, and trust me, if you have it, your enemies are even more not likely to grant you any.
  • Really, the only time this will be safe(ish) and viable is when you pick it up early on, and you are absolutely sure your enemies are really terrible, n00bs or just plain stupid.


Guide Top

Item Chart; TLDR

If you're too lazy to read everything,

ALWAYS BUY SIGHT WARDs


Guide Top

Gameplay

Why should I play Katarina in mid?
Spoiler: Click to view

Laning with Katarina
Spoiler: Click to view


Harassing
Spoiler: Click to view


Ganking
Spoiler: Click to view


Farming
Spoiler: Click to view


Combo
Spoiler: Click to view


Guide Top

Blue Buff

Ancient Golem
Initial spawn time: 1:55
Respawn time: 5:00
Gold: 66 (+0.332 per minute after spawn)
Experience: 260 (+2.5 per minute after spawn)
Drops:
Crest of the Ancient Golem
[aka. Blue Buff]
SPACE Ancient Golem Camp

Contents: 1xAncient Golem & 2x Young Lizards
Importance: Slaying the Ancient Golem grants the Crest of the Ancient Golem buff to its killer.
Buff: Holder regenerates 25 flat mana regeneration per 5 seconds and 0.5% of their maximum mana per second and has 20% cooldown reduction on their abilities for 2 minutes and 30 seconds. If slain, the buff transfers to its killer, and refreshes the 2:30 of the buff.
Who Needs It? Casters with spammable spells, Mana-hungry Champions
General Roles who want it: Jungle Champions like Amumu, AP Mids like Ahri, and Supports like Soraka.
For Katarina
  • Blue Buff is very important,and many champions can become extremely aggressive and powerful with it because it lets them spam their spells because of the CDR and Mana Regen it offers. However, Katarina doesn't necessarily have the highest priority for this buff because she doesn't really have mana, so it doesn't maximize the effect.
  • See if anyone else like in your team needs it more, as Katarina is not reliant on it.
  • If your team is willing to give it to you though, take it because 20% CDR is a big deal for Katarina in team fights.

Try to intercept your opponent in mid lane from getting the blue buff or this can be fatal on your part. Champions like Ahri will have no hesitation to keep bursting and spamming, and this can destroy your lane. So what now?

Ask your jungler to take their blue buff, or when you face someone with a blue buff, try to ask help from your jungler to gank him and end any potential harassment with the blue buff your opponent had accquired.

Example: Anivia:(This Kat's about to die! Just need to get blue buff to kill her.. Dafuq? It was stolen! Daaaann daaaanna daaaaaaaannnnnn!)


Guide Top

Possible Match-Ups

In every game, you'll encounter different opponents in the mid lane. I'll try to give as much tips on how to counter different types of foes.

Let's analyze the usual AP carries you'll come across.

Ahri


Difficulty:Medium
Ahri is a champion with high mobility and quite some damage. Try your best to dodge her skill-shots, which you shouldn't really have trouble with considering you have Shunpo. The best way to defeat her is to try to make her use up her mana, and better yet make her waste her Spirit Rush, cutting off her mobility. Consider her Charm when engaging with her, especially when using Death Lotus. She ganks well with her kit so try to cancel this out by trailing her. Keep in mind, however, that a well-played Ahri can be very fatal.

Akali


Difficulty: Easy
Akali is kind of similar to your champion,and you shouldn't have much trouble with her. She has no CC to counter Death Lotus, although she can go under invisibility with Twilight Shroud, you can still damage her with Death Lotus. Her ultimate gives her some mobility, but she can only use this on enemy units, so Shunpo has quite the advantage on this.

Anivia


Difficulty: Medium
Anivia has a kit of slows and stuns. As long as you can avoid her Flash Frost, you'll do fine. With Rebirth, you shouldn't really dive in a turret to kill her, as Anivia after dying, turns into an egg. You can't kill it within the turret's range, and she can use this to her advantage. She's not going to be easy to kill, however you can try instead to get a farm advantage, or if possible, roam.

Annie


Difficulty: Medium-Hard
"Size doesn't mean everything"-Teemo
Annie, despite her short range, is quite dangerous. Pyromania, allows her to be able to stun on her next offensive spell. Once you see a white swirl of wind around Annie, you've got to remember two words. Back off. Katarina is, as mentioned earlier, quite squishy. If you go near Annies range with her Pyromania up, you're in for quite some trouble. She'll burn your HP into a crisp. Try to take harass and farm when Annies Pyromania isn't ready. Roaming would be nice too since Annie is naturally a slow champion.As long as you play your cards right Annie won't be too much of a problem.

Cassiopeia


Difficulty: Medium-Hard
Every once in a while, we see some sibling rivalry. Show Cassiopeia whose boss! Make sure you are not bad in avoiding her spells, lest you can blow your lane good-bye. In case she picks up a blue buff, keep your distance, because it's safe to assume you won't be able to handle her spam. Try to avoid her abilities, as you have much, much more mobility compared to her, and make sure you don't use your Death Lotus while she has Petrifying Gaze.
Diana


Difficulty: Hard
Diana deals a lot of burst damage. Her Moonfall can cancel your Death Lotus, and you must always try to dodge her Crescent Strike, in order to stop her from activating her combo. You'll need constant ganks from your team or jungle, because its very hard to par with Diana. However, if you focus on farming and roaming, you should be able to outplay her.
Fizz


Difficulty: Hard
Fizz has amazing mobility, and damage at the same time. He can easily harass you as his poke is extremely painful, considering Urchin Strike and Seastone Trident. A wrong cast of Death Lotus can be fatal as he can just activate Playful / Trickster and get away with it. Try to only initiate on Fizz when his abilities are off cooldown.
Kassadin


Difficulty: Hard
Kassadin has high burst damage, a silence, slow and mobility with his ultimate, Riftwalk. You shouldn't really be engaging with him when his skills are available, as he can easily burst you down. Remember that his ultimate has a low cooldown, so keep this in mind when chasing him.
Katarina

Sinister Steel
Difficulty: Easy
You should be able to predict the movements of the enemy Katarina. Play aggressively if needed, and passively if the situation calls it. Learn the movements of the enemy, and adjust accordingly. You shouldn't have a hard time with her.
LeBlanc
Mirror Image
Sigil of Silence
Difficulty: Hard
She has high burst damage and silence, so you'll have to watch your step. Try taking early magic resist items such as Abyssal Scepter, and you should, most of the time, play passively. When she uses Mimic, you should try to use this to your advantage as a strong part of her burst is gone for 30 seconds.
Lux


Difficulty: Easy-Normal
Luxs abilities focuses on skillshots. Use this to your advantage and try to dodge her abilities with Shunpo if neeeded. Remember that her Light Binding doesn't interrupt your Death Lotus, so you shouldn't be too worried. Overall, she isn't that hard to fight.
Morgana


Difficulty: Medium
Morgana deals decent damage with her Dark Binding, her Black Shield gives decent defense from your abilities, and Soul Siphon gives her spell vamp. Just try to avoid her Dark Binding and use your combo after she's used it. If you feel like you're going to get trapped in Dark Binding a lot, don't play aggressively and just farm instead.
Orianna


Difficulty: Hard
Orianna is a devastating opponent. She disables your farming with Command: Attack whenever you go near the creep waves, and when you initiate on her she has Command: Protect to give her a shield, and Command: Dissonance for mobility. With Command: Shockwave, she'll cancel out your ultimate. Try to predict her moves, and juke from her abilities. When fighting against Orianna, you might want to max Bouncing Blades first because you won't really be able to get near, and Bouncing Blades will serve as your main poke and farm tool.
Ryze


Difficulty: Medium-Hard
Early game, you probably will be at a disadvantage with Ryze. He has a snare, decent damage and he'll probably stack up on some magic resist. His ultimate, Desperate Power gives him considerable spell vamp and movement as well. He's not that easy to face, although it's kinda good that he doesn't have a spell to counter your Death Lotus, as he only has a snare.
Syndra


Difficulty: Medium-Hard
Syndra can be a pain in the butt when laning with her. Her abilities might burst you down and obliterate your health bar without putting herself in danger. Keep in mind that Scatter the Weak can interrupt your Death Lotus and make sure to watch out when she has a lot of spheres as her ultimate, Unleashed Power really hurts a ton with a lot of spheres.
Teemo
Camouflage

Difficulty: Easy
Oh Teemo, you're the one all of us hates. Luckily for you, you needn't hate this cute little guy. His Blinding Dart doesn't affect your spells at all, and once you tick level 6, you can destroy him with your ultimate, as he has no CC. You might want to pick up an Oracle's Elixir later on for his Noxious Traps.
Veigar


Difficulty: Medium
Veigar can interrupt your Death Lotus with his Event Horizon,and his abilities aren't bad enough to not be able to burst you down.His Primordial Burst gets really painful once you've garnered a good amount of AP as well. His cooldowns aren't too low, they have quite a high cooldown as well.
Ziggs


Difficulty: Medium
Ziggs can interrupt your ultimate,so watch out for that. His abilities also compliment each other well, so that can be quite fatal. Try to burst him down when he's out of mana or when he's used his abilities.
Zyra

Deadly Bloom
Difficulty: Easy
Zyra is really squishy, and all you have to do is evade/destroy her plants. With her squishyness, you usually should be able to kill her early on and win your lane. Try to engage on her when her plants aren't too close to her. In case you can't kill the plants, stray away from them. They can pack a punch.


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Scores

My scores achieved with this build:


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Frequently Asked Questions


Q:Isn't it also possible to get Rylai's Crystal Scepter?
A:Rylai's Crystal Scepter isn't that bad with Katarina, but I believe that you won't be getting the most of this item. The only ability which brings out Rylai's Crystal Scepters full potential is Shunpo, so I don't think buying this is a good idea.




Q:How about Lich Bane?
A:I've heard some people talk about Lich Bane being viable on Katarina, but since you don't really attack much, and you don't even have mana, the benefits of this item isn't quite brought out with a champion like Katarina.




Q:Should I get Mejai's Soulstealer?
A:Although this gives a tremendous amount of AP at a low price, when you die you lose a lot of the AP garnered with Mejai's Soulstealer and that would make you crippled. With this said, Mejai's Soulstealer is not that reliable.



Q:What about Hextech Gunblade?
A:It used to be effective, but not it isn't that viable with Katarina anymore. It is too expensive for it's benefits, so it's better to get something else like Rabadon's Deathcap.




Q:Is there another way to build Katarina?
A:Yes, there are many possible ways but AP scales best with Katarina and going AP for Katarina brings out her full potential.


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Tips

+Buy sight wards, they can save your very life.

+Try to last hit well, the early phase of the game matters.

+Try to burst AP carries and AD carries or Marksmans first, tanks last.

+Make sure not to position yourself incorrectly, it can change a
teamfight's direction

+Spam as much as you can, you have no mana

+Make sure not to get too cocky and go in alone


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Conclusion

I hope you took the time browsing through my guide.Please don't forget to leave comments or ratings and on how I can improve, since this is just my first guide and it can really help me out.

If I may ask, when you downvote, please state a good reason why or better, wait until my guide improves, especially if your reason is "Walls of Text". I say this cause, if you really take a look at most top-rated guides, they give in-depth info, much longer than mine. If that's your reason for downvoting, please don't.

Thanks and have a nice day, and I hope you have tons of fun with Katarina =)

Update Log
  • 8/6/2013-Added Why I Don't Get Section, and Updated Blue Buff Section
  • 8/4/2013-Guide created! =D
Special thanks to