Card name: Claustrophobia
Mana Cost: CMC1Color UColor U
Converted Mana Cost: 3
Types: Enchantment — Aura
Card Text: Enchant creature

When Claustrophobia enters the battlefield, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.

Flavor Text: Six feet of earth muffled his cries.
Expansion: ORIC Origins
Rarity: Common

Card rulings (?)
2015-06-22 Claustrophobia can target and enchant a tapped or untapped creature.
2015-06-22 The enchanted creature can still be untapped in other ways. Claustrophobia will remain attached, and the creature will continue to not untap during its controller's untap step.