Wanderer, the Scarred

+3: Until your next turn, whenever Wanderer, the Scarred would take damage, instead prevent that damage and put a loyalty counter on her.
-4: Exile target creature, then draw cards equal to half the loyalty counters remaining on Wanderer, the Scarred, rounded down
-12: Exile all creatures and planeswalkers you don't control, then exile Wanderer, the Scarred, then return it to the battlefield under your control