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Ruinous Waterbending

Black

1 printing listed in our catalog, from newest to oldest.

Ruinous Waterbending, Avatar: The Last Airbender printing
Avatar: The Last Airbender TLA · No. 118 2025-11-21

Card text

{1}{B}{B}
Sorcery — Lesson
As an additional cost to cast this spell, you may waterbend {4}. (While paying a waterbend cost, you can tap your artifacts and creatures to help. Each one pays for {1}.) All creatures get -2/-2 until end of turn. If this spell's additional cost was paid, whenever a creature dies this turn, you gain 1 life.
Keywords: Waterbend
EDHREC rank #16256 Uncommon Not on the Reserved List
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Standard ✓ Legal
Pioneer ✓ Legal
Modern ✓ Legal
Legacy ✓ Legal
Vintage ✓ Legal
Pauper ∅ Not legal
Commander ✓ Legal
Oathbreaker ✓ Legal
Brawl ✓ Legal
Historic ✓ Legal
Timeless ✓ Legal
Alchemy ✓ Legal
Explorer ∅ Not legal
Gladiator ✓ Legal
Penny ∅ Not legal
Duel ✓ Legal

Official rulings

5 rulings · in English, source Scryfall

Even if the cost of the spell or ability that waterbend is part of increases or decreases, you still may only tap artifacts or creatures to pay for costs up to the amount of the generic mana in the waterbend cost.

2025-10-02 · Wizards of the Coast

If a waterbend cost is part of the total cost to cast a spell or activate an ability, you may tap an untapped artifact or creature you control rather than pay one generic mana in that total cost any number of times up to a maximum of the amount of generic mana in the waterbend component of that total cost.

2025-10-02 · Wizards of the Coast

"Waterbend [cost]" means "Pay [cost]. For each generic mana in that cost, you may tap an untapped artifact or creature you control rather than pay that mana."

2025-10-02 · Wizards of the Coast

You can tap any untapped creature or artifact you control to pay a waterbend cost, even one you haven't controlled continuously since the beginning of your most recent turn.

2025-10-02 · Wizards of the Coast

If an artifact or creature you control has a mana ability with {T} in the cost, activating that ability while casting a spell or activating an ability with waterbend will result in the artifact or creature being tapped before you pay the spell's costs. You won't be able to tap it again for waterbend. Similarly, if you sacrifice an artifact or creature to activate a mana ability to pay a cost with waterbend, that artifact or creature won't be on the battlefield when you pay the spell's costs, so you won't be able to tap it for waterbend.

2025-10-02 · Wizards of the Coast

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