Cursed Dead

Enchant creature in a graveyard.
When enchanted creature becomes enchanted by Cursed Dead, return it to the battlefield under your control. It gains haste and "this creature
must attack each turn if able." Whenever enchanted creature attacks, defending player puts
a copy of it onto the battlefield under their control. Remove that token from the game at the beginning of the next end step. If Cursed Dead leaves the battlefield, sacrifice enchanted creature.