Talk:Kog'Maw/@comment-178.59.120.223-20111026124333/@comment-85.207.18.54-20111030190737

Void staff + mastery covers all magic penetration needs you would ever want. Flat mpen is great against enemies that stack no mres whatsoever and even against them void staff+mastery works pretty well. Void staff + mastery = targets mres has been cut in half.