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Permafrost Trap
Instant — Trap
uncommon
If an opponent had a green creature enter the battlefield under their control this turn, you may pay 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.
Card Kingdom
CardmarketSemantic Tags
A keyword ability that lets you tap creatures rather than pay mana to cast a spell. See rule 702.51, “Convoke.”
Format Legality
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Printings (1)
| Set | Rarity | TCGplayer | Card Kingdom | Cardmarket |
|---|---|---|---|---|
| Worldwake#34 | uncommon | · | · | · |
Related Rules
Convoke
Convoke is a static ability that functions while the spell with convoke is on the stack. “Convoke” means “For each colored mana in this spell’s total cost, you may tap an untapped creature of that color you control rather than pay that mana. For each generic mana in this spell’s total cost, you may tap an untapped creature you control rather than pay that mana.”
The convoke ability isn’t an additional or alternative cost and applies only after the total cost of the spell with convoke is determined.
Multiple instances of convoke on the same spell are redundant.
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.
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.
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.