Goetia, Cure to Eternity

+3: Ars Nova - Exile a permanent you control. If that permanent is a creature, you gain life equal to its toughness.
-3: Ars Paulina - Goetia, Cure to Eternity becomes Hexproof and gains an indestructible counter.
-14: Ars Almodel Salamonis - Destroy everything, discard all hands, then exile all graveyards. Return Goetia transformed under your control