So you want to play Control with acceleration? You know your card draw sucks, if you make -1 for mana. No control deck wants to use cards to accelerate and rely on it. Cards like Memoricide don't win the game, because people aren't stupid enough to only play one win-condition/combo-piece. 4-Mana to slow combo down? Even turn 3 this can be too late, if you are on the draw.

