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Their food sources have decreased, and their numbers have declined sharply. Sludge ponds are being built to prevent their extinction.
Abilities, attacks, weakness & resistance
The Special Condition Poisoned is not removed when your opponent's Pokémon evolve or devolve.
Your opponent's Active Pokémon is now Poisoned. Put 2 damage counters instead of 1 on that Pokémon between turns.
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Muk (sm9-63) is a Stage 1 Psychic Pokémon from the Team Up set with the Poison Sacs Ability and a single attack called Toxic Secretion. Poison Sacs prevents Poisoned from being removed when an opponent's Pokémon evolves or devolves, enabling persistent poison effects. Toxic Secretion deals damage and applies Poison that places two damage counters between turns instead of one, reinforcing a poison-based strategy.
Catalog pricing data as of 21 Apr 2026, 10:18