Azrael, Born from Death

Flying, deathtouch
At the beginning of each end step, if a creature both entered the battlefield and a creature died this turn, put ten +1/+1 counters on Azrael, Born from Death.
"Strip from me the garments of my thoughts, my friendships my name, and what then remains? Do not mourn what never was. Death is fallacy." - final teaching of Avajana, the Irenic