Ghasta, Forgotten Mage

+2: You can cast any spell this round under the cost of 3 mana of Mountain, Forest or Swamp.
-1: Preface2 all creatures in your hand. (All creatures in you hand right now gain an +0/+2 counter but costs 1 more mana to cast.)
-4: Create a 3/3 Mage with; All your cards cost one less mana to play. Create a 3/3 Mage with; All enemy cards cost one more mana to play.