Creature — Horror
4 / 4
Ceremorphosis — When Illithid Harvester enters, turn any number of target tapped nontoken creatures face down. They're 2/2 Horror creatures.
Sorcery — Adventure
Tap X target creatures. They don't untap during their controllers' next untap steps. (Then exile this card. You may cast the creature later from exile.)
Once the permanents are face down, no player may mix them up on the battlefield or otherwise try to hide or disguise which card is which.