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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 Tempest
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Spell Blast (TMP 89) is a blue instant from the Tempest expansion. It counters a target spell by paying an {X} in addition to {U}, where X must equal the target spell's mana value to resolve. Its flexibility lets it scale from a cheap counter against small spells to an expensive answer for very large mana-value spells.
Catalog pricing data as of 29 Apr 2026, 13:41