- Rarity
- Uncommon
- HP
- 60
- Stage
- Basic
- Type
- Colorless
- Weakness
×2- Retreat
- Artist
- Sumiyoshi Kizuki
- Ability
- Poké-POWER: Temperamental WeatherOnce 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.
- Attacks
- Forecast
Search your deck for a Stadium card and play it. Shuffle your deck afterward.
- 20+Extra Ball
If the Defending Pokémon is Pokémon-ex, this attack does 20 damage plus 20 more damage.
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Castform #066
Undone Seal · Uncommon
Castform #066 has a TCGplayer market price of $3.00 (Lightly Played, 1st Edition). Cardmarket lists it at €1.97 (Near Mint, 1st Edition).
Market prices
Updated Oct 19, 2026Lightly Played$3.00
Moderately Played$3.00
Damaged$1.25
Market prices
Updated Oct 20, 2026Near Mint€1.97
Excellent€0.95
Good€0.35
Played€0.50
Poor€0.30
Price history
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