Eaubion, Flesh Flayer

When Eaubion, Flesh Flayer enters the battlefield, each player returns all creature cards
from their graveyard to the battlefield. Each
creature returned this way becomes a 1/1 black Skeleton, and loses all other abilities.
Eaubion, Flesh Flayer's power is equal to the
number of Skeletons on the battlefield.

"Real power isn't in the flesh." -Eaubion