Arlecchino, 4th of The Fatui

Flying, Deathtouch
At the start of your upkeep target opponents creature and put a Red Death mark on it. If that creature were to die, exile it, and put a +1/+1 counter on Arlecchino, 4th of The Fatui.
{b}{r}: -1/-1 Arlecchino, 4th of The Fatui, each creature you control gains +1/+1. Activate this ability once per turn.