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5 facts about this card
Cloyster #20 was released in EX FireRed & LeafGreen and, like other cards in the set, also had a Reverse Holofoil version—giving this rare ex-era pull an extra layer of collector appeal.
This specific Cloyster card is remembered for its Poké-Body, Exoskeleton, which reduces incoming attack damage and perfectly matches Cloyster’s long-standing identity as one of Kanto’s toughest shell-armored Pokémon.
Cloyster is Pokédex #091, and in Pokémon FireRed it could be obtained by evolving Shellder—making its appearance in a FireRed & LeafGreen-themed set a neat callback to its actual role in those games.
Early official depictions gave Cloyster’s face the look of a black pearl, a strange and memorable design detail that helped make this Gen I Pokémon feel mysterious even among the original 151.
The card was illustrated by Aya Kusube, an artist whose softer, storybook-style Pokémon art gives this defensive Cloyster card a more collectible personality than its battle text alone suggests.
Card Reference
Cloyster [Reverse Holo] is a Pokemon trading card from the Pokemon Fire Red & Leaf Green set, card number 20. This card has a Rare rarity, is printed in English, belongs to the EX Series era, and was released in 2004. The current market price is $34.78, based on recent Raw NM sales tracked on Double Holo.
The current market price of Cloyster [Reverse Holo] is $34.78. Market price reflects recent Raw NM sales on Double Holo and updates as new sales come in.
Cloyster [Reverse Holo] is from the Pokemon Fire Red & Leaf Green set, card number 20, released in 2004.
Whether Cloyster [Reverse Holo] is worth grading depends on its condition and the graded population for the card. Higher grades command larger premiums, so review recent graded sales and use Double Holo's Grading ROI tools to weigh the cost of grading against the expected graded value before submitting.
You can buy or sell Cloyster [Reverse Holo] on the Double Holo marketplace, which pairs live listings with a bid and ask order book, so you can set your own price or take the best available offer. Sellers pay a 4.9% platform fee on completed sales, with a $1 minimum.