Pokémon · EX
Cloyster
FireRed & LeafGreen · #20 · Rare · 2004
Listings
No active listings
From
—
Market reference
$2.23
TCGPlayer
Current listings on The Game Traders
No active listings for this card right now.
Card facts
Quick reference for collectors and graders.
- Set position
- 20 / 116
- Release year
- 2004
- Rarity
- Rare
- HP
- 70
- Subtype
- Stage 1
- Evolves from
- Shellder
- Retreat cost
- 1 energy
- Illustrator
- Aya Kusube
- Pokédex #
- 91
- Series
- EX
Card analysis
Computed from this card's stats and text — not a reposted price.
- Primary role
- Status Conditions
- Damage efficiency
- 50 damage
- 16.67 per Energy
- Prize liability
- 1 Prize given up
- Single-prize attacker — favourable prize trades
- Setup
- Stage 1
- One evolution step from a Basic
Also does
Strategy & play
How Cloyster plays — derived from its stats and the rules of the game, not an opinion.
- Inflicts Paralysis — the Defending Pokémon can’t attack or retreat for a turn. A reliable one-turn lock; chain it to stall the opponent out.
- Its main attack (Shell Attack) needs 3 Energy — a turn-3 swing on manual attachment — you’ll want Energy acceleration to power it up on time.
- Needs Water Energy to attack — your line must supply that color.
- Water type, weak to Lightning ×2 — a Lightning attacker doing ≥35 effectively one-shots it.
- A single-prize attacker — prize-trade-positive against ex / V decks that give up two at a time.
- A Stage 1 — one step up from Shellder; doesn’t help your opening hand, but quick to set up.
How to beat Cloyster
- Exploit its Lightning weakness — ≥35 damage one-shots it.
- Gust it before the evolution is set up.
- On the receiving end of a condition? Retreat, switch, or evolve to wipe it — conditions only stick to the Active.
More by Aya Kusube
This card was illustrated by Aya Kusube.
Building around Cloyster?
Drop it into the deck builder for a live consistency score, synergy suggestions, and Standard legality checks.
About this card
Poké-Body: Exoskeleton
Any damage done to Cloyster by attacks is reduced by 20 (after applying Weakness and Resistance).
CCDouble Bubble — 10×
Flip 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.
WCCShell Attack — 50
Weakness:L×2
Retreat cost:C
Tournament legality
Current legal status across competitive formats.
Pricing reference
Latest snapshot from the upstream catalog. Actual marketplace prices fluctuate by condition, edition, and grade — use this as a reference, not a quote.
TCGPlayer (USD)
Updated 2026/07/04| Variant | Low | Mid | High | Market | Direct Low |
|---|---|---|---|---|---|
| Normal | $1.90 | $2.50 | $30.10 | $2.23 | — |
| Reverse Holofoil | $21.07 | $48.99 | $323.10 | $34.87 | — |
Cardmarket (EUR)
Updated 2026/07/01| Variant | Price |
|---|---|
| 1-day average | €1.44 |
| 7-day average | €1.74 |
| 30-day average | €2.26 |
| Low | €0.10 |
| Trend price | €2.05 |
| Low (excellent+) | €0.49 |
| Reverse holo low | €1.70 |
| reverseHoloAvg1 | €5.49 |
| Reverse holo 7-day | €30.94 |
| reverseHoloSell | €6.02 |
| averageSellPrice | €2.36 |
| Reverse holo 30-day | €11.91 |
| Reverse holo trend | €22.63 |
Frequently asked
How can I tell if my Cloyster is real?
Cloyster is not on our list of commonly-counterfeited cards, but counterfeits exist across every set. Check the back-light test (real cards have a black inner layer that blocks light; counterfeits glow through), the rosette dot pattern on the back under magnification, font weight and kerning on the card name, and the holofoil pattern if applicable. For high-value copies we recommend submitting to a professional grader (PSA, BGS, CGC) for tamper-evident authentication.
What is Cloyster worth?
As of the latest data, the current market reference price for Cloyster is $2.23; there are no active listings on The Game Traders right now. Actual value depends on condition, grading, edition and printing variant — graded high-condition copies (PSA 9–10) trade at a substantial premium over raw copies.
What set is Cloyster from?
Cloyster is from the Pokémon set "FireRed & LeafGreen" in the EX series, released in 2004.
What rarity is Cloyster?
Cloyster is a Rare card in the FireRed & LeafGreen set.
Other Cloyster printings
Same Pokémon card across other sets and rarities.
