Welcome to my first guide. I prefer AD over AP because you can harass a lot more early game. You also have health regen. at the beginning which helps A LOT if you're going mid.

Pros:
- Excellent harassment
- Good damage dealer early, mid, and late game
- Very short cooldowns

Cons:
- Usually focused by enemy
- Squishy

+: Simply amazing. This is really good against mostly tanks, but it is also effective against everyone else. Just add Ignite into your skill sequence.
+: This setup can be used both defensively and offensively. This is my most recommended setup since it helps you in nearly any situation. Whether you're running away or trying to tag the enemy by their tail.
+: I don't want to see anyone using this setup... PLEASE!

1.for some AD and health regen.

2.+(if you can't afford phage, get it next time)

3. Finish building your. Once you get this, you should see that you can kill A LOT more efficiently.

4. Getand build up to your. This will help with both killing and survivability.

5. Get. This gives you a decent AD boost. It will also help A LOT against tanks because of the 40& armor pen.

6. For some survivability and a just a tad bit more AD, get
7. If you've got the time and money for this, just get it to watch the enemies fall ;)

>>>

Early Game: Katarina can play both mid and side lanes. She's most effective going mid though because of the extra exp and gold. Farm the creeps that come to you. Make sure you use your bouncing blades for a last hit kill. Also, keep harassing the enemy(s) with your bouncing blades. If you are having a bit of trouble, call your team for a gank.

Mid Game: If you get fed and you're just OP'ed to the max, run around for kills to help push. If not, keep farming anytime you can to build your build...

Late Game: Stick with the team when in late game. Don't wander alone or you're asking for a gank. In a team battle, stay out of the crowd. Keep launching your bouncing blades in. Once their HP is at about 50%-75%, activate killer instincts, shunpo, then unleash your death lotus upon their, "soon to be", grave.

Thanks for reading this build. If you have any tips or recommendations to help me improve my build, feel free to comment below!