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.
Katarina - Micro Madness
If you want to be successful with Katarina, you need to master movement and maneuvers. Katarina can be built two ways: Focusing on Physical Damage or Ability Power. This build is focusing on Ability Power.
It's essential that you stay away from your enemies. Katarina can combat, but she is not a melee fighter, so hear what I have to say. Katarina specializes in hit and run tactics. Shunpo does massive damage and will be your tool for most battles. It places you right next to the enemy and does a lot of damage, but it can also be used to escape a situation if enemies are overwhelming by warping to an allied unit nearby.
You need to focus shunpo on a target enemy and then pull away from the enemy and throw a bouncing blade at them to continue to damage them. The best way to be victorious is to weaken your enemy to about 1/3 of their health remaining and then finish them off with a combo of Shunpo, Death Lotus, and Bouncing Blade for the finish (if needed). This is how it works early game. Later game you'll be lowering their health quickly regardless (beware of magic resistance - if this happens, focus on those that have lower magic resistance first).
Two of your spells are crucial given scenarios. Flash can be used to escape if needed, jumping past walls if you hug up against them, or just jumping far away so you can run at a distance. Another use of Flash that I prefer is to flash to your target and use death lotus (if the enemy flees in any direction, use shunpo on the target, you will warp to and damage and continue to channel death lotus if done quickly enough).
The second spell Exhaust is essential as well, especially if dealing with characters such as Master Yi, or heavy damage champions, either way. The seconds that the enemy is blind and slowed can give you enough time to finish them off with your skills and abilities.
I tend to Flash up to my target, Exhaust them, Death Lotus, and then Shunpo to them as they try to escape, and if I must, I finish them with a bouncing blade.
First I start with something to keep me alive and healthy - REGROWTH PENDANT
I level up and survive in my lane, being conservative, until I can afford SORCERER's SHOES.
By now I gank and farm until I can get RYLAI's CRYSTAL SCEPTER.
And I continue to gank and farm until I have enough for MEJAI's SOULSTEALER (ASAP).
save your money until you have around 1100 gold.
Exchange of an item:
Sell REGROWTH PENDANT and buy a SPIRIT VISAGE (mainly for the cooldown reduction)
Work on getting LICH BANE.
Lastly, get ZHONYA's RING.
You should be doing massive damage with abilities. Don't forget that Katarina is not a melee fighter, do not warp into a crowd of champions unless you catch them off their guard. Try to stay behind your teammates and warp in last (not first - expection: unless it's a really squishy champion that you can hit and run out with flash quickly enough). Caution is everything for Katarina. Play cautiously. Don't assume no one is behind those bushes, always assume the worst case scenario. Play safe.
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