Mercyque, Arisen Crown

+2: Whenever you discard a card Mercyque deals 1 damage to any target. Discard a card then draw a card.
-6: Gain control of target creature or planeswalker, it has "If you dont control a Mercyque planeswalker sacrifice this permanent.".
-12: You get an emblem with "At the beggining of your upkeep return a nonlegendary creature from your graveyard to the battlefield.".