Weya Wektune Undead Queen

+2: Mill 3 then exile a card from your graveyard. If you exile a noncreature, draw 2 and lose 2 life, otherwise create a 3/1 black Zombie Demon.
-5: Sacrifice a creature, return a creature from your graveyard to play, then you and target opponent lose life equal to its mana value.
-10: Exile 2 creatures from your graveyard. Create a token copy of one, then put X +1/+1 counters on it, where X is the second creatures power.