Every Castform Rainy Form card

The short version

Castform Rainy Form has one printing in Pokémon TCG Pocket, in Pulsing Aura. It is a Basic Water-type Pokémon with 70 HP, weak to Lightning, with a retreat cost of 1. The only printing is a Common. A Common has no rare-slot rate to quote — it fills the slots every pack is guaranteed to have, so opening the right expansion at all will turn one up. It comes out of the Pulsing Aura pack. That expansion shipped in April 2026. It attacks with Rainy Absorbing, which costs one Water energy and hits for 30. If a Stadium is in play, heal 20 damage from this Pokémon. The card’s own words: “This is Castform’s form when pelted by rain. In an experiment where it was placed in a shower, this Pokémon didn’t change to this form.” It is drawn by sowsow.