Talk:Katarina/@comment-9775822-20131217034844/@comment-5955640-20131217051643

You mostly just use AP. You get a stronger ratio of damage from AD for Sinister Steel and Death Lotus but the bulk of her kit really responds to AP so it's better to build that. The opening of the ratios allows for you to by a hybrid item like the hextech gunblade. Actually it's just the hextech gunblade as far as I know I've never heard of a Katarina buying Rageblade or Trinity Force.