gremgrix lockout

You may choose not to untap this creature during your untap step. : Tap target artifact. It doesn't untap during its controller's untap step for as long as this creature remains tapped.

All permanents are artifacts in addition to their other types. All cards that aren't on the battlefield, spells, and permanents are colorless. Players may spend mana as though it were mana of any color.

Creatures don't untap during their controllers' untap steps. Whenever a creature enters, untap all creatures.

Enchant creature Enchanted creature has ": Create a token that's a copy of this creature, except it has haste. Exile that token at the beginning of the next end step."