Fourth Edition Foreign Black Border · #110
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Enchant creature Enchanted creature gets +3/+3. At the beginning of the upkeep of enchanted creature's controller, put a -1/-1 counter on that creature.
Abilities, attacks, weakness & resistance
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Unstable Mutation (4BB-110) is an Enchantment — Aura from Fourth Edition Foreign Black Border that enchants a creature. The enchanted creature gets +3/+3 while the Aura is attached. At the beginning of that creature controller’s upkeep, Unstable Mutation puts a −1/−1 counter on the enchanted creature, which remains if the Aura later leaves.
Catalog pricing data as of 17 Apr 2026, 13:06
