Description, catalog fields, rules text, and how it plays—in one place.
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Born from gases, anyone would faint if engulfed by its gaseous body, which contains poison.
Abilities, attacks, weakness & resistance
Flip a coin. If heads, your opponent's Active Pokémon is now Asleep and Poisoned.
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M Mewtwo-EX (Holofoil)
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M Glalie-EX (Holofoil)
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Houndoom-EX (Holofoil)
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Gastly (xy8-58) is a Basic Psychic Pokémon common from the BREAKthrough expansion. Its sole attack, Sleep Poison, costs one Psychic Energy and can flip a coin to leave the opponent's Active Pokémon Asleep and Poisoned. With a Darkness weakness and Fighting resistance, it typically serves as an early-game status inflictor rather than a primary damage attacker.
Catalog pricing data as of 15 Apr 2026, 10:22