Talk:Katarina/@comment-26040142-20150221044320/@comment-9705522-20150227224357

She doesnt actually. She has high base damage. Her scaling, outside of her ult, is terrible. Problem is, until late game even the ults scaling is irrelevant. But yes, early on almost all of your damage will come from base damage, so building AP will lead to less damage than building magic pen. Which is why building magic pen is far more effective early game.

Building an early Zhonyas is good nonetheless. Rabadons however should be saved for later, and that new item not built until (maybe) the 6th item.