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.
humble servants of the Sinister Blade, I will guide you through the arts of speed-killing
with our lady Katarina. I will begin with the summoner abilities and learn you all you need to know.
Summoner Abilities : Flash and Cleanse.
Flash can be used both offensive and defensive. the arts of speed-killing allows flash to become a key ability. you can travel in the blink of an eye and slay the enemy before they even gets a clue about whats going on. Flash+Shunpo was something they should have nerfed long ago. Cleanse is a Must for Katarina. Since she have no stunns herself, it is highly important to avoid the enemies. A stun is *ALWAYS* followed up by a nuke. you have to predict the stunns and avoid them, use them to your own advantage. Learn how to master Cleanse+Shunpo/Flash, and you will have a insane advantage.
Start out by buying a Dorians blade, Katarina is insane for middle since she has Bouncing blade and Shunpo as Harass abilities. Harass them gently, if your not in middle, Be sure to have a ranged by your side, or a tank. Take it easy cut down on their Hp and when you reach Lvl:6
Go for a full nuke.
If there is a succesfull kill you got an advantage, Its about this far in the game you need to Buy Mercury Threads. Also time for some Jungel fun.
At this point( about lvl 10) You should have an Oracles(if nesecary) And some vision Wards Planted in the jungel. You need to Get last kill on the mobs so the gold farming goes upwards, bouncing blade is the key here.
After maybe 2-3 Champ Kills go and get 2x B.F. Sword's, When you got the money for it upgrade both to Bloodthirster and max out the passive effect to MAX.
Now you should be fine to hammer away at the enemies, Just don't do anything i wouldnt do :P
You'r Lvl 15-16 At this point and got a few champion kills, Save up for Phantom Dancer.
Doing this isnt to hard at this point since you have an great advantage over the enemy.
When you get Phantom Dancer, you will notice the damage will increase violently since your able to crit, The run speed is insane aswell since noone got a chance to escape you.
After Phantom Dancer go for Warmog's Armor. Health is a problem while you perfecting this build. Go Jungel alot and play dirty tricks as often you can. Don't be to greedy though. it leads to a sure death most of the times. After the Warmog's Armor (the game should end before you gets to this point) Buy a Infinity Edge and your complete.
The point with this Speed-Killing Tecnique is to give your team a boost. Run back and forth from lane to lane, and help out. Never do the same thing twice,be unpredictable and filthy. Catch them with their pants down and finish them off.