Talk:Katarina/@comment-24082086-20160124012611/@comment-4636093-20160124030331

A champion who doesn't use mana is designed so that they're sacrificing something if they want items which give it.

And as for Morellonomicon, it doesn't give too much mana regen. Chances are you could still probably buy it if you really want CDR on Kat, usually she doesn't make use of it though, so you're really only getting it for the AP and there are better AP items to buy.