
Description, catalog fields, rules text, and how it plays—in one place.
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It is hot inside its cocoon. All the cells in its body create the energy for it to evolve.
Abilities, attacks, weakness & resistance
During your opponent's next turn, if Cascoon would be damaged by an attack, prevent that attack's damage done to Cascoon if that damage is 30 or less.
The Defending Pokémon can't retreat during your opponent's next turn.
Other cards from Diamond & Pearl

Metal Energy (Reverse Holofoil)

Metal Energy (Normal Unnumbered)

Metal Energy

Darkness Energy (Reverse Holofoil)

Darkness Energy (Normal Unnumbered)

Darkness Energy

Fighting Energy (Normal Unnumbered)

Fighting Energy

Psychic Energy (Normal Unnumbered)

Psychic Energy

Lightning Energy (Normal Unnumbered)

Lightning Energy
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Cascoon (dp1-44) is a Grass-type Stage 1 Pokémon from the Diamond & Pearl set with Uncommon rarity. It has Harden, which can prevent up to 30 damage from a single attack on the opponent's next turn, and Gooey Thread, a 20-damage attack that prevents the Defending Pokémon from retreating next turn. Its retreat cost is three Colorless and it is weak to Fire, making it a defensive pivot that can stall or lock the opponent's active Pokémon.
Catalog pricing data as of 22 Apr 2026, 15:34