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17 May 2024: Card library updated.

Thassa's Rebuff

1U · Instant

Counter target spell unless its controller pays {X}, where X is your devotion to blue. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)

Similar cards

Color identity:
NameManaTypeText
Tymna the Weaver 1WBLegendary Creature — Human Cleric Lifelink At the beginning of your postcombat main phase, you may pay X life, where X is the number of opponents that were dealt combat damage this turn. If you do, draw X cards. Partner (You can have two commanders if both have partner.) 2/2
Parnesse, the Subtle Brush 2UBRLegendary Creature — Vampire Wizard Whenever you or a permanent you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless that player pays 4 life. Whenever you copy a spell, up to one target opponent may also copy that spell. They may choose new targets for that copy. 4/4
Isolation Cell 4Artifact Whenever an opponent casts a creature spell, that player loses 2 life unless they pay {2}.
Castle Vantress Land Castle Vantress enters the battlefield tapped unless you control an Island. {T}: Add {U}. {2}{U}{U}, {T}: Scry 2.
Bonecrusher Giant 2RCreature — Giant Whenever Bonecrusher Giant becomes the target of a spell, Bonecrusher Giant deals 2 damage to that spell's controller. 4/3
Drifter il-Dal UCreature — Human Wizard Shadow (This creature can block or be blocked by only creatures with shadow.) At the beginning of your upkeep, sacrifice Drifter il-Dal unless you pay {U}. 2/1
Megatherium 2GCreature — Beast Trample When Megatherium enters the battlefield, sacrifice it unless you pay {1} for each card in your hand. 4/4
Ingenious Mastery X2USorcery You may pay {2}{U} rather than pay this spell's mana cost. If the {2}{U} cost was paid, you draw three cards, then an opponent creates two Treasure tokens and they scry 2. If that cost wasn't paid, you draw X cards.
Lapis Lazuli Talisman 2Artifact Whenever a player casts a blue spell, you may pay {3}. If you do, untap target permanent.
Abjure UInstant As an additional cost to cast this spell, sacrifice a blue permanent. Counter target spell.
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