Cramped Bunker is a rare Enchantment card from The List (Unfinity Foil Edition) (ULST), collector number 45. Current market price: — (foil $0.15), TCGplayer market prices via Scryfall.
At the beginning of each opponent's upkeep, that player moves a permanent they control to touch this enchantment and no other permanents. If the player can't, destroy each permanent they control that isn't touching this enchantment, then sacrifice it.