Betrayers of Kamigawa (bok)
#33 • rare • English • Foil
#33 • rare • English • Foil
Disrupting Shoal 

X
Instant — Arcane
You may exile a blue card with mana value X from your hand rather than pay this spell's mana cost.
Counter target spell if its mana value is X.
Counter target spell if its mana value is X.
Illustrated by Scott M. Fischer
Links
Legalities
Not Legal
Not Legal
Not Legal
Legal
ModernLegal
LegacyNot Legal
Legal
vintageLegal
CommanderNot Legal
Not Legal
Rulings
If a card in your hand has {X} in its mana cost, X is considered to be 0.
2018-12-07 • wotc
If a spell has {X} in its mana cost, include the value chosen for that X when determining the mana value of that spell, even if it was cast for an alternative cost and no mana was spent on X.
2018-12-07 • wotc
Disrupting Shoal can target any spell, but does nothing unless that spell's mana value is X.
2005-02-01 • wotc