Damion, Arcane Master

+1: Give target creature you control a +1/+1 counter.
+1: Until end of turn, Damion, Arcane Master becomes a 5/5 Human Mage creature with indestructible that's still a Planeswalker.
-7: Create three 1/1 Indestructible Magic Wraiths onto the battlefield with "Whenever this creature deals damage to a player, they lose the game."