
Image © The Pokémon Company, shown for identification.
Tentacool
Hidden Legends · #77/101
Tentacool (77/101), the Common from Hidden Legends, has an estimated ungraded market price of about $0.40.
As of September 14, 2026 · tracked daily by Riffle · estimates, not financial advice · how these numbers work
The modeled fair value of this card, with a confidence grade: what it should trade at, not just what it lists at. Part of Riffle premium, alongside price history and the full graded ladder.
About Tentacool
Tentacool is a Common (77/101) from the Pokémon Hidden Legends set, released June 1, 2004. Ungraded copies currently trade at an estimated market price of under $1. The artwork is by Hisao Nakamura. Riffle tracks its market price daily; graded (PSA) comps and full price history are available with Riffle.
Other versions of Tentacool
Tentacool appears on 14 different cards across the sets Riffle tracks, at very different values. This page covers #77/101 from Hidden Legends; the collector number printed at the bottom of the card tells them apart.
Aquapolis · #113/147$3–$4Common
Primal Clash · #71/160$2–$3Uncommon
Legendary Collection · #96/110under $1Common
Triumphant · #80/102under $1Common
Legends Awakened · #125/146under $1Common
Fossil · #56/62under $1Common
Legend Maker · #66/92under $1Common
Primal Clash · #70/160under $1Common
151 · #072/165under $1Common
Team Up · #60/181under $1CommonFAQ
How much is Tentacool (77/101) worth?
Tentacool (77/101), the Common from Hidden Legends, has an estimated ungraded market price of about $0.40. Note: 13 other cards named Tentacool exist across the sets Riffle tracks, at very different values; check the collector number.
Which Tentacool card is this, and how do I tell the versions apart?
This page covers Tentacool (77/101), the Common (about under $1) from Hidden Legends.
The other versions: #113/147 from Aquapolis (Common, about $3–$4); #71/160 from Primal Clash (Uncommon, about $2–$3); #96/110 from Legendary Collection (Common, about under $1); #80/102 from Triumphant (Common, about under $1); #125/146 from Legends Awakened (Common, about under $1); #56/62 from Fossil (Common, about under $1); #66/92 from Legend Maker (Common, about under $1); #70/160 from Primal Clash (Common, about under $1); #072/165 from 151 (Common, about under $1); #60/181 from Team Up (Common, about under $1); #23/145 from Guardians Rising (Common, about under $1); #26/203 from Evolving Skies (Common, about under $1); #40/214 from Unbroken Bonds (Common, about under $1).
The collector number printed at the bottom of the card is the reliable way to tell them apart.
Should I grade Tentacool (77/101)?
Probably not for value: after fees, grading is estimated to return about $12 LESS than selling Tentacool (77/101) raw (est.).
Assumes ~$25/card bulk-rate grading (standard service costs more); ignores turnaround time, sub-9 grades, and shipping. A screen, not a promise.
Is Tentacool (77/101) rare?
Tentacool (77/101) is a Common. PSA has graded 43 copies to date, so graded supply is measurable and growing.
How rare is a PSA 10 Tentacool (77/101)?
Of the 43 copies PSA has graded, 5% earned a PSA 10. That's a low gem rate, so flawless copies are genuinely hard to come by. Grade-by-grade population and pop-over-time appear with Riffle premium.
More from Hidden Legends
Should I grade Tentacool?
No: grading returns ≈ $12 less than selling raw (est.)
Expected grading return from this card’s own PSA grade mix (5% gem rate; grades under 8 valued at the PSA 8 price) and current graded market prices, minus a ~$25/card bulk-rate grading fee, compared against selling ungraded at market price. Standard grading service costs more; centering risk, turnaround time, and shipping aren’t included. The exact PSA 8/9/10 prices behind this are part of Riffle premium. Not financial advice.
PSA population & gem rate
From the PSA population census, captured monthly by Riffle. A 5% gem rate is on the hard side; PSA 10 copies of this card are scarcer than the typical modern chase card. Grade-by-grade population and pop-over-time appear with Riffle premium.
- under $1 is the middle 80% of clean market activity, not the cheapest listing and not the most hopeful one.
- The band spans about ±25% around its midpoint: a moderate spread.
- Sampled daily since July 28, 2026, current as of September 14, 2026.
When the data thins, the band widens and says so, it never fakes precision. Exact source prices are part of Riffle premium; the band is Riffle’s own figure to publish. How these numbers work →