Eldorius the Mastermind

Assign - Scythe of the Mastermind
Flying, Trample, Persist (When this creature dies, if
it had no -1/-1 counters on it, return it to the battlefield
under its owner's control with a -1/-1 counter on it.)
Whenever Eldoriu deals combat damage to an opponent, it deals that much damage to each other opponent. Remove all -1/-1 counters from it.