Quote Originally Posted by Evil Roopey
The fact of the matter is, a deck like this will go into the late-game against decks like Gro and any control deck ever, and Confidant is a much stronger card in that sense. But if you want to lose versatility by not running good cards over bad ones, be my guest.
But you are taking out a creature Mongrel/Flesh Reaver both of which can compete with Gro's creatures and adding one that can't under any circumstance. As for control decks if a control deck can't answer a 2/1 then it probably never had a chance of beating this deck anyway.