Name:Illithid Harvester
ManaCost:4 U
Types:Creature Horror
PT:4/4
T:Mode$ ChangesZone | Origin$ Any | Destination$ Battlefield | ValidCard$ Card.Self | Execute$ TrigTurnFaceDown | TriggerDescription$ Ceremorphosis — When CARDNAME enters, turn any number of target tapped nontoken creatures face down. They're 2/2 Horror creatures.
SVar:TrigTurnFaceDown:DB$ SetState | ValidTgts$ Creature.tapped+nonToken | TgtPrompt$ Select any number of target tapped nontoken creatures | TargetMin$ 0 | TargetMax$ X | Mode$ TurnFaceDown | FaceDownPower$ 2 | FaceDownToughness$ 2 | FaceDownSetType$ Horror & Creature
SVar:X:Count$Valid Creature.tapped+nonToken
AlternateMode:Adventure
Oracle:Ceremorphosis — When Illithid Harvester enters, turn any number of target tapped nontoken creatures face down. They're 2/2 Horror creatures.

ALTERNATE

Name:Plant Tadpoles
ManaCost:X U U
Types:Sorcery Adventure
A:SP$ Tap | ValidTgts$ Creature | TgtPrompt$ Select X target creatures | TargetMin$ X | TargetMax$ X | AlwaysRemember$ True | SubAbility$ DBPump | SpellDescription$ Tap X target creatures.
SVar:DBPump:DB$ Pump | Defined$ Targeted | KW$ HIDDEN This card doesn't untap during your next untap step. | Duration$ Permanent | StackDescription$ SpellDescription | SpellDescription$ They don't untap during their controllers' next untap steps.
SVar:X:Count$xPaid
Oracle: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.)
