Castform 66/83Undone Seal #66/83
Also searched as: Castform Undone Seal · Castform 066/083 · Undone Seal Castform · Castform 66 · Castform 66 83
Undone SealJapanese PokémonUncommon
Market price · 1st Edition
US market estimate from TCGplayer · Oct 28, 2026
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Prices by printing
| Printing | Market | Low listing | High listing |
|---|---|---|---|
| Unlimited | $1.75 | $2.50 | $4.00 |
| 1st Edition | $3.00 | $3.00 | $4.90 |
Market is the estimate from recent sales. Low and high are the range of current listings; high listings are often outliers.
Value by condition
- Near Mint (NM)$3.00
- Lightly Played (LP)$2.25 – $2.70
- Moderately Played (MP)$1.50 – $2.25
- Heavily Played (HP)$0.75 – $1.50
- Damaged (DMG)$0.30 – $0.75
Estimates from typical condition discounts, not sales of this card. Rare cards often keep more value when played. Condition guide
Price history
Daily market price for the last 4 days we have recorded. Hover or tap the chart for exact values.
- 1st Edition$3.00
- Unlimited$1.75
Show price history as a table
| Date | Printing | Market |
|---|---|---|
| Oct 28, 2026 | 1st Edition | $3.00 |
| Oct 28, 2026 | Unlimited | $1.75 |
| Oct 27, 2026 | 1st Edition | $3.00 |
| Oct 27, 2026 | Unlimited | $1.75 |
| Oct 26, 2026 | 1st Edition | $3.00 |
| Oct 26, 2026 | Unlimited | $1.75 |
| Oct 25, 2026 | 1st Edition | $3.00 |
| Oct 25, 2026 | Unlimited | $1.75 |
Card details
- Description
- Poké-POWER: Temperamental Weather Once during your turn (before your attack), you may search your deck for Sunny Castform, Rain Castform, or Snow-cloud Castform and switch it with Castform. (Any cards attached to Castform, damage counters, Special Conditions, and effects on it are now on the new Pokémon.) Shuffle Castform back into your deck. You can't use more than 1 Temperamental Weather Poké-Power each turn.
- Card Type
- Colorless
- HP
- 60
- Stage
- Basic
- Weakness
- Fighting x2
- Retreat Cost
- 1
- Attack 1
- [Colorless] Forecast Search your deck for a Stadium card and play it. Shuffle your deck afterward.
- Attack 2
- [Colorless][Colorless] Extra Ball (20+) If the Defending Pokémon is Pokémon-ex, this attack does 20 damage plus 20 more damage.
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Prices are US market estimates in USD, from TCGplayer sales data, last updated Oct 28, 2026. They are a guide, not an offer to buy or sell. How we price cards.
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