For more information on this Pokémon's species, see Castform.
Snow-cloud Castform (Japanese: 雪雲のポワルンSnow Cloud's Powalen) is a Water-type Basic Pokémon card. It is part of the EX Delta Species expansion.
Temperamental Weather おてんきへんげ
Once during your turn (before your attack), you may search your deck for Castform, Rain Castform, or Sunny Castform and switch it with Snow-cloud Castform. (Any cards attached to Snow-cloud Castform, damage counters, Special Conditions, and effects on it are now on the new Pokémon.) Shuffle Snow-cloud Castform back into your deck. You can't use more than 1 Temperamental Weather Poké-Power each turn.
Holon Blizzard ホロンブリザード
If Snow-cloud Castform has any Holon Energy cards attached to it, this attack does 10 damage to each of your opponent's Benched Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)