I thought of a new passive for Kog'Maw
HEAVY WEAPON ― Kog'Maw isn't very fast. Fortunately, teammates can pick him up and carry him about. Abilities (aside from dashes, blinks, and similar movement abilities) are disabled while holding Kog'Maw. Kog'Maw cannot move independently in this state, but can indicate a desired direction or target to his carrier. He can still attack and use his own abilities independently of his carrier. Kills Kog'Maw scores are also considered kills for the person carrying him. http://www.screencuisine.net/wp-content/uploads/2011/04/crysis41.jpg