Curse of Hades

This can't be removed from play until enchanted
player controls no more creatures. All creatures
target player controls lose and can't gain shroud,
hexproof, or protection from black until Curse
of Hades leaves the battlefield. Enchant target
player, then Curse of Hades targets the creature
with the highest power among creatures target
player controls, that creature gets a -4/-4
counter every upkeep. If targeted creature dies
repeat this process, if enchanted player controls
no more cr