Cloyster 20/112 FireRed & LeafGreen Pokemon card

Cloyster #20/112

Pokemon card from FireRed & LeafGreen · released 2004-09-01

Cloyster is a Rare Water-type Stage 1 Pokemon card, number 20/112 of the FireRed & LeafGreen set (released 2004-09-01), illustrated by Aya Kusube. Its highest TCGplayer market price is ~$33.39 for the Reverse Holofoil finish, updated 2026-06-14.

Prices by finish

FinishMarket priceLowMidBuy
Normal$2.19$1.52$3.13TCGplayer ↗
Reverse Holofoil$33.39$17.94$49.00TCGplayer ↗

TCGplayer market prices per finish, updated 2026-06-14 — not appraisals. Condition and grading change real-world value.

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Card details

SetFireRed & LeafGreen
Number20/112
RarityRare
Type Water
HP70
StageStage 1 — evolves from Shellder
ArtistAya Kusube
Format legalityNot legal in Standard or Expanded
FinishesNormal · Reverse Holofoil

Attacks & abilities

Poke-BODY: ExoskeletonAny damage done to Cloyster by attacks is reduced by 20 (after applying Weakness and Resistance).

Double Bubble10xFlip 2 coins. This attack does 10 damage times the number of heads. If either of the coins is heads, the Defending Pokémon is now Paralyzed.

Shell Attack50

Weakness: Lightning ×2 · Retreat cost: 1

Other Cloyster printings

More FireRed & LeafGreen cards

Full FireRed & LeafGreen card list →

All Cloyster cards · FireRed & LeafGreen price list

Card data via TCGdex and pokemontcg.io, updated 2026-06-14; prices via TCGplayer via TCGCSV, updated 2026-06-14. Not official values.