Undone SealJPN
Set market cap
64 cards tracked dailyWhat to target in Undone Seal
The top 10 cards are 69% of the set’s $1,441.00 estimated singles cost — plan these first and the rest follows on a normal budget.
| # | Card | Number | Rarity | Market | PSA 10 |
|---|---|---|---|---|---|
| 1 |  Ninetales ex | #18 | Holo Rare | $449.99 | $2,025.00 |
| 2 |  Wigglytuff ex | #58 | Holo Rare | $150.00 | $214.14 |
| 3 |  Groudon ex | #56 | Holo Rare | $100.00 | $1,966.00 |
| 4 |  Registeel ex | #72 | Holo Rare | $70.00 | $1,151.00 |
| 5 |  Kyogre ex | #39 | Holo Rare | $49.99 | $500.14 |
| 6 |  Milotic | #25 | Holo Rare | $39.98 | $760.00 |
| 7 |  Regirock ex | #55 | Holo Rare | $37.29 | $992.84 |
| 8 |  Vileplume ex | #5 | Holo Rare | $34.99 | $180.00 |
| 9 |  Ninetales | #17 | Holo Rare | $30.00 | $620.77 |
| 10 |  Rain Castform | #26 | Rare | $29.99 | $251.41 |
How Undone Seal is built
Rarity breakdown
Price distribution
Most cards are bulk — the set’s value concentrates in a few chase cards.
Singles or sealed?
Sealed product comparison
Which Undone Seal cards are worth grading?
Positive expected value after ~$25 fees at live PSA prices and this set's real gem rates.
Ninetales ex #18raw $449.99 → PSA 10 $2,025.00 4.5×EV +$530.98Groudon ex #56raw $100.00 → PSA 10 $1,966.00 19.7×EV +$858.57Registeel ex #72raw $70.00 → PSA 10 $1,151.00 16.4×EV +$474.43Kyogre ex #39raw $49.99 → PSA 10 $500.14 10×EV +$340.98Milotic #25raw $39.98 → PSA 10 $760.00 19×EV +$336.65Regirock ex #55raw $37.29 → PSA 10 $992.84 26.6×EV +$451.18Strong PSA 10 premium — the math works only on gem-worthy copies.
Fees eat most of the margin. Grade to preserve a pristine pull, not for profit.
Premiums and EV use tonight’s PSA prices and this set’s real gem rates — not projections.
What collectors say about Undone Seal
Creators on Undone Seal
Synthesized from widely-reported collector consensus — see a take that’s off? Use the report link on any card page.
Protect your Undone Seal cards
This set has 3 cards worth $100+ — sleeve-and-toploader territory at minimum, and the chase cards deserve double-sleeving.
Every card worth more than bulk goes in a sleeve before anything else touches it.
eBay →The archival-safe standard for cards you handle — double-sleeve chase cards with a perfect-fit inner.
eBay →Sleeve + toploader is the minimum for anything you might grade or sell raw.
eBay →Side-loaders keep cards from sliding out; zip closure keeps dust and drops away.
eBay →Affiliate links — purchases support CardPrice at no extra cost. Full guide: how to build & store a master set.
All cards 83
Most valuable cards in Undone Seal
- Ninetales ex #18 — $449.99
- Wigglytuff ex #58 — $150.00
- Groudon ex #56 — $100.00
- Regice ex #38 — $76.50
- Registeel ex #72 — $70.00
- Kyogre ex #39 — $49.99
- Milotic #25 — $39.98
- Regirock ex #55 — $37.29
- Vileplume ex #5 — $34.99
- Ninetales #17 — $30.00
About Undone Seal (Japanese)
Undone Seal (Japanese) is a Pokémon TCG expansion in the Japanese series, released on 2004-01-16. The set contains 83 cards. The combined market value of a complete set is currently $1,518.78, with Ninetales ex #18 as the most valuable card at $449.99. Prices update nightly from live market data.
Undone Seal (Japanese) — FAQ
How many cards are in Undone Seal (Japanese)?
Undone Seal (Japanese) contains 83 cards.
What is the most valuable card in Undone Seal (Japanese)?
Ninetales ex #18 at $449.99, based on live market data updated nightly.
How much is a complete Undone Seal (Japanese) set worth?
A complete raw set is currently worth about $1,518.78 at market prices.
When was Undone Seal (Japanese) released?
Undone Seal (Japanese) was released on 2004-01-16.