Tentacool

Mystery of the Fossils · #promo · Common · 1997JPN

All 35 Tentacool cards ranked by value →
$0.50
Market price ▼ 10.7% (30d)
Prices as of Nov 10, 2026
547graded pop
32%gem rate
317.5×PSA 10 vs raw
-79%off ATH $2.40 · Jul 2026
+$45.46EV to grade — worth it
Market data

Price history

Normal▼ 5.7% 7d
Low $0.20Mid $0.55

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Graded market

Graded values

PSA 10 report →updated 2026-11-10
Grade 6 est.$0.48
Grade 5 est.$0.40
Grade 4 est.$0.33
Grade 3 est.$0.28
Grade 2 est.$0.23
Grade 1 est.$0.19

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

PSA 10 price history$158.77

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

Graded population census · updated 2026-09-19

CGC313 graded · 105 gem 10
PSA234 graded · 70 gem 10

Population data from PriceCharting, updated monthly.

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How much is Tentacool #promo worth?

A raw copy of Tentacool #promo (Mystery of the Fossils, 1997) is worth about $0.50 right now, based on the latest market data from November 10, 2026.

Grading changes the math on this one: a PSA 10 is valued around $158.77, roughly 317.5x the raw price, while a PSA 9 sits near $29.65. 313 copies have been graded to date, and 34% 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 Tentacool has moved over time.

Collecting Mystery of the Fossils?Full master set guide — every card, chase list, and completion cost→