Undone Seal
#21 · 2004 · 83 cards
Market Price · Near Mint · Updated August 10, 2026
—
Prices updated Aug 10, 2026
Recent market data · NM
Grale earns a commission on TCGPlayer purchases at no extra cost to you
Live listings · Sorted by price
Grale earns a commission on eBay purchases at no extra cost to you
HP
70
Type
Pokémon
Stage
Stage 1
Evolves from
["Tentacool"]
Attacks
Long Tentacle
Flip a coin. If heads, the Defending Pokémon is now Confused. If tails, discard an Energy card attached to the Defending Pokémon.
Toxic
The Defending Pokémon is now Poisoned. Put 2 damage counters instead of 1 on the Defending Pokémon between turns.
Weakness
Illustrated by
Hisao Nakamura
Pokédex
#73
| Condition | Market | eBay Sold |
|---|---|---|
Near Mint | — | $9.49 |
Lightly Played | — | — |
Moderately Played | — | — |
Heavily Played | — | — |
Damaged | — | — |
~ estimated from NM using standard condition discounts · updated when marketplace data is available
Ungraded + PSA / CGC / BGS grades
| Condition | Market | eBay |
|---|---|---|
| Near MintMost common | — | $9.49 |
| Lightly Played | — | — |
| Moderately Played | — | — |
| Heavily Played | — | — |
| Damaged | — | — |
Graded Prices
| Grade | PSA | CGC | BGS |
|---|---|---|---|
| 9 | $453.77 | $5.00 | — |
Live market prices · ~ estimated using standard condition discounts
Tentacruel
151
-4.8%14d
Tentacruel
Alolan Moonlight
Tentacruel
Aquapolis
0.0%14d
Tentacruel
Aquapolis
-0.6%14d
Tentacruel
Clash at the Summit
0.0%14d
Tentacruel
Cry from the Mysterious
Tentacruel
Evolving Skies
0.0%14d
Tentacruel
Fossil
+33.9%14d
Tentacruel
Guardians Rising
0.0%14d
Tentacruel
Hidden Legends
+1.4%14d
Tap a grade to see its price history
