Permafrost Trap
{2}{U}{U}Instant — Trap
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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.
Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.
Official rulings
- If a targeted creature is untapped at the time its controller's next untap step begins, the second part of the ability has no effect on it. (2010-03-01)
- If an affected creature changes controllers before its previous controller's next untap step, this ability will prevent it from untapping during its new controller's next untap step. (2010-03-01)
- You may target any two (or fewer) creatures. It's okay if any of them are already tapped. If you cast Permafrost Trap for {U}, you don't have to target the green creature that entered under an opponent's control. (2010-03-01)
Cards like this
Functionally similar cards by meaning — playable in Permafrost Trap’s colours.
