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Counter target spell with mana value X. (For example, if that spell's mana cost is {3}{U}{U}, X is 5.)
Abilities, attacks, weakness & resistance
Other cards from 30th Anniversary Edition
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Spell Blast (30A-79) is a blue Instant reprint from the 30th Anniversary Edition set. It counters a target spell and requires you to pay {X}{U}, where X equals the mana value you wish to counter. The card's rulings clarify how to calculate X versus a target spell's mana cost and interactions with alternative or variable costs.
Catalog pricing data as of 21 Apr 2026, 06:40