Morgaul, Priest of Monstrosity

{1}{r}{r},{t}, Sacrifice two other creatures: For the rest of the turn, you can activate Monstrosity abilities without paying their mana costs.
Whenever a creature you control becomes monstrous, create X 1/1 red Minotaur creature tokens with haste, where X is the number of +1/+1 counters put onto that creature when it became monstrous.