Jes Terr

Whenever a creature dealt damage by Jes Terr this turn dies, exile it with a Goop counter on it.
When Jes Terr dies, create a token that's a copy of a card exiled with a Goop counter, except it's a shapeshifter named Jes Terr. Put the exiled card into its owner's graveyard.
He refuses to die, even when the whole world wants him to