Uvelnsus, the Demon Lord

Flying, haste, trample
Undying 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.)
When Uvelnsus, the Demon Lord attacks, it gains deathtouch until end of turn.
Demon and Devil creatures you control get +1/+1 and have haste, and trample.