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Blue creatures don't untap during their controllers' untap steps. At the beginning of each player's upkeep, that player may choose any number of tapped blue creatures they control and pay {4} for each creature chosen this way. If the player does, untap those creatures.
Abilities, attacks, weakness & resistance
Other cards from Foreign Black Border
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Magnetic Mountain (FBB 163) is a red Enchantment from the Foreign Black Border set. It prevents blue creatures from untapping during their controllers' untap steps and offers an upkeep option to pay {4} per tapped blue creature to untap them. The card acts as a color-targeted lock and tax, useful for disrupting blue-based opponents or enabling political/tempo plays in multiplayer.
Catalog pricing data as of 29 Apr 2026, 16:08