Cloyster

Expedition Base Set · #42/165 · Rare · 2002

$33.77

42 · Reverse Holofoil · Market price ▲ 7.3% (30d)

Prices as of Aug 14, 2026

42 42 · Reverse Holofoil

HP 80WaterStage 1Art · Kyoko Umemoto

445graded pop

25%gem rate

3.2×PSA 10 vs raw

-38%off ATH $29.22 · Aug 2026

−$5.44EV to grade — don't

Market data

Printings & price history

42 · Reverse Holofoil▲ 7.3% 7d$33.77

Low $38.69

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Graded market

Graded values

PSA 10 report →updated 2026-08-14

Grade 6 est.$27.76

Grade 5 est.$23.38

Grade 4 est.$19.29

Grade 3 est.$16.07

Grade 2 est.$13.15

Grade 1 est.$11.10

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$800.00

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

Graded population census · updated 2026-07-07

Reverse Holofoil

PSA153 graded · 14 gem 10

12345678910

CGC59 graded · 10 gem 10

12345678910

Population data from PriceCharting, updated monthly.

Attacks

10Lick

Flip a coin. If heads, the Defending Pokémon is now Paralyzed.

20×Auto Fire

Flip 4 coins. This attack does 20 damage times the number of heads.

How much is Cloyster #42/165 worth?

Cloyster #42/165 is a Rare card from Expedition Base Set (2002) — today it trades at roughly $15.76 ungraded. Across the 2 printings we track, copies run anywhere from $16.05 to $362.88 depending on the version you're holding.

Grading changes the math on this one: a PSA 10 is valued around $107.20, roughly 6.8x the raw price, while a PSA 9 sits near $35.00. 153 copies have been graded to date, and 9% of them came back a 10 — worth knowing before you pay grading fees.

These figures come from nightly market-data syncs verified against completed sales. Use the chart above to see the trend before you buy or sell.

Collecting Expedition Base Set?Full master set guide — every card, chase list, and completion cost→