Talk:Kog'Maw/@comment-24959866-20140519075222/@comment-7992038-20140613013714

It's an on-hit effect buff as opposed to an AA empower. It doesn't proc spellvamp the same reason Teemo's toxic shot, Varus' blighted quiver on-hit damage and Jinx's fishbones don't. Kayle is the only exception.