name: Permafrost Trap
originalText: If an opponent had a green creature enter the battlefield under his or her control this turn, you may pay {U} rather than pay Permafrost Trap's mana cost.\nTap up to two target creatures. Those creatures don't untap during their controller's next untap step.
printings: WWK
text: If an opponent had a green creature enter the battlefield under their control this turn, you may pay {U} rather than pay this spell's mana cost.\nTap up to two target creatures. Those creatures don't untap during their controller's next untap step.
type: Instant — Trap