Cloyster

Generations · #20/83 · Uncommon · 2016

$0.61

Reverse Holofoil · Market price ▲ 1.7% (30d)

Prices as of Jul 26, 2026

Normal Reverse Holofoil

HP 100WaterStage 1Art · Masakazu Fukuda

2graded pop

0%gem rate

55.5×PSA 10 vs raw

-74%off ATH $2.23 · Sep 2021

Printings & price history

Reverse Holofoil▲ 0.0% 7d$0.61

Low $0.30Mid $0.61

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Graded values

updated 2026-07-26

Grade 6 est.$1.12

Grade 5 est.$0.94

Grade 4 est.$0.78

Grade 3 est.$0.65

Grade 2 est.$0.53

Grade 1 est.$0.45

Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.

Reverse Holofoil · PSA 10 price history$43.11

PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.

Graded population census · updated 2026-07-10

CGC2 graded · 0 gem 10

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Population data from PriceCharting, updated monthly.

Attacks

30Clamp Crush

Flip a coin. If heads, your opponent's Active Pokémon is now Paralyzed and discard an Energy attached to that Pokémon.

30×Spike Cannon

Flip 5 coins. This attack does 30 damage times the number of heads.

“Cloyster that live in seas with harsh tidal currents grow large, sharp spikes on their shells.”

How much is Cloyster #20/83 worth?

A raw copy of Cloyster #20/83 (Generations, 2016) is worth about $0.31 right now, based on the latest market data from July 26, 2026. Across the 2 printings we track, copies run anywhere from $0.10 to $1,000.00 depending on the version you're holding.

Grading changes the math on this one: a PSA 10 is valued around $33.86, roughly 109.2x the raw price, while a PSA 9 sits near $12.09. 2 copies have been graded to date, and 0% of them came back a 10 — worth knowing before you pay grading fees.

We update this valuation every night from live market data and verify it against real completed sales — see the chart above for how Cloyster has moved over time.