Stroke from Above

Destroy target nonland permanent. Its controller creates a 1/1 white Hollow Human creature token.

"The Asylum Demon managed to survive the war that the Silver Knights of Gwyn waged against its kind
and at some point it was able to escape from the ruins
of Lost Izalith, bringing its Demon's Great Hammer, made from the stone archtrees, with it. The demon wandered Lordran until it came to reside in the Northern Undead Asylum."