Goat Protastant

+3: Give one goat you control +1/+1 and Mountainwalk or Plainswalk until end of turn
-4: All creatures become goats until end of turn then target players life total becomes the number of goats on the battlefield +8
-20: Goat Protastant becomes a 15/15 goat with trample, sacrifice goat protastant at the end of your next turn