Voltron

+2: Exile target graveyard from the game. Play cards exiled this way until end of turn and spend mana as though it were any color to cast them.
-3: All creatures you control gain trample and double strike until end of turn and you draw 3 cards.
-10: Create an emblem that says: When Voltron dies shuffle it into your library and put five 3/3 Lion-Mech creature tokens on to the battlefield.