Blanc, Patient Goddess

+2: Create two red leaf tokens with haste and "whenever this creature leaves the battlefield it deals 2 damage to any target"
-3: Exile the top three cards of target players library until end of turn you play those cards, you may use mana of any type to cast them
-12: Create six 0/4 tree tokens with "whenever this creature dies it does 7 damage to any target"