Duplicate

Enchant creature
When Duplicate enters the battlefield target a creature you don't control. Enchanted creature becomes a copy of target creature and loses all of
its other abilities.
When enchanted creature deals damage to any
target put an ultimate counter on it. When it has
5 or more ultimate counters remove them all,
roll a D6, deal damage to target creature or planeswalker equal to the results and return Duplicate to your hand.