Elder Discord

Unchained 4(If you pay 4 or more life to cast this spell, you lose the game at the beginning of your
next upkeep.)
Menace, haste
When a creature enters the battlefield under you control, you may give it haste. If you do, sacrifice
it at the end of turn.
Whenever a creature under you control dies at
combat phase, each opponent loses 1 life.