Talk:Kog'Maw/@comment-98.202.150.53-20121104211437/@comment-68.109.110.108-20121115090120

Madred's Bloodrazor does suck, Xepheros is on the forums saying basically "We're removing Bloodrazor because it's a trap item and never worth buying. Wit's end deals the same damage, offers more resistance stats and costs half as much.  We're replacing this item with Blade of the Ruined king which should be better."

Just because MBR and Kog'maws W go together doesn't mean it's any better on him than any other carry, it stacks additively, so if you don't buy it you still do 6% of enemy's max life. Besides, why on earth would you get Madred's (an item which deals magic damage) on kog'maw (a champion with a magic on-hit) and say "I'm building a Black cleaver for Armor reduction". It's silly, you're dealing hybrid damage, so you can't effectively itemize for penetration/reduction. It's just not worth it.

In short, your build is pretty bad, sorry.