Description, catalog fields, rules text, and how it plays—in one place.
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Its hard shell cannot be shattered—not even by a bomb. The contents of the shell remain unknown.
Abilities, attacks, weakness & resistance
Flip a coin. If heads, this attack does 30 more damage. If tails, your opponent's Active Pokémon is now Paralyzed.
During your opponent's next turn, this Pokémon takes 20 less damage from attacks (after applying Weakness and Resistance).
Other cards from Sun & Moon
Fairy Energy (Reverse Holofoil)
Fairy Energy
Metal Energy (Reverse Holofoil)
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Darkness Energy (Reverse Holofoil)
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Fighting Energy (Reverse Holofoil)
Fighting Energy
Psychic Energy (Reverse Holofoil)
Psychic Energy
Lightning Energy (Reverse Holofoil)
Lightning Energy
Cloyster (sm1-34 Reverse Holofoil) is a Water-type Stage 1 Pokémon from the Sun & Moon expansion. It has two attacks: Headlock, which either adds 30 damage or Paralyzes the opponent on a coin flip, and Guard Press, which deals 80 damage and reduces damage taken by 20 during the opponent's next turn. The card has a retreat cost of three Colorless, a Grass weakness, and uses its bulky shell flavor text to reflect defensive play.
Catalog pricing data as of 18 Apr 2026, 20:00
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