Ice Rebel

Whenever one or more creatures die, target
player may pay 4 life. If that player doesn't,
destroy target black creature.
At the beginning of each opponent's combat
phase, put a warp counter on target permanent.
Sacrifice a Plains, {t}: Regenerate target
permanent with a warp counter on it.
Each creature with a warp counter on it has
Bushido 1.
Each creature with a warp counter on it can't be blocked except by Wizards.