Rain Castform

# Rain Castform (Delta Species) Rain Castform from Delta Species represents an interesting footnote in Pokémon TCG history. Collectors appreciate this card primarily for its connection to the Delta Species mechanic, which reimagined familiar Pokémon with altered typings. The Rain variant specifically appeals to players and collectors who built around water-type strategies during that era. The card exists in standard and reverse holofoil versions, with the reverse holo being the more challenging pull for set completionists. While not a chase card, Rain Castform matters to Delta Species enthusiasts working toward full set collection. Its modest playability and modest artwork make it a solid mid-tier collectible rather than a cornerstone piece, valued more for set completion than standalone appeal.