All You Need Is Kill

All creatures in play have Keiji (If this creature dies
or leaves play for any reason, immediately return it to
play with a -0/-1 counter on it for each time it has returned to play in this way. Creatures that enter play
with 0 toughness lose Keiji and are exiled.)
During your upkeep you may pay {5} or lose 5
Life to prevent this enchantment's effect for all
opponents' creatures for the rest of this turn.
"I'll raise myself to their level without fail."