Springtrap, The Undying

If Springtrap, The Undying were to die, you may sacrifice an artifact creature. If you do, return Springtrap, The Undying to the battlefield tapped at the beginning of your next upkeep.

{2}, Put a 2/1 artifact creature Endoskeleton token onto the battlefield

Sacrifice 5 Endoskeleton tokens: Exile target creature in a graveyard, create a artifact creature token of that creature