The Once and Future Nick

+2: The Once and Future Nick deals 2 damage to any target. If a creature targeted this way dies, create a treasure token.
-2: Take control of target creature an opponent controls until end of turn. It becomes untapped and gains haste and trample.
-8: You create an emblem with: If a creature or planeswalker your opponent controls would die, you may pay {2}. If you do gain control of it.