Exika, Fiendish Patron

+2: Put two +1/+1 counters on target creature you control. It gains indestructible until end of turn.
-2: Exile target instant or sorcery from your graveyard. You may cast a copy of it without paying its mana cost.
-12: Destroy all creatures target opponent controls. Place +1/+1 counters equal to the number of creatures destroyed this way onto target creature.