Not Updated For Current Season
This is my first build.First buy Rejuvenation Bead. Katarina is a good harasser with Bouncing Blade. Harass a lot with Bouncing Blade.Then buy Spirit Visage. Then buy Berserker's Greaves. Then start buying Bloodthirsters. Buy as much Bloodthirsters as you can. You will be doing a lot damage. Try killing as much minions as you can for your Bloodthirsters. Hope this build helps you guys!