Never-Ending Skeletons

Never Ending Skeletons can't block.
When Never-Ending Skeletons enters the battlefield create a 1/1 black Skeleton creature
token with when this creature dies you may
return a card named Never-Ending Skeletons
from the graveyard to the battlefield under its
owner's control. If you do lose 2 life.
This is probably too good to be a common.