A Basic Pokemon Card of type Water with the title Rain Castform and 70 HP of rarity Rare from the set Delta Species.  It has the attack Holon Splash with the cost Colorless, Colorless, Colorless, the energy cost 3 and the damage of 30+ with the description: Does 30 damage plus 10 more damage for each Holon Energy card attached to Rain Castform. It has the ability Temperamental Weather with the description: Once during your turn (before your attack), you may search your deck for Castform, Sunny Castform, or Snow-cloud Castform and switch it with Rain Castform. (Any cards attached to Rain Castform, damage counters, Special Conditions, and effects on it are now on the new Pokemon.) Shuffle Rain Castform back into your deck. You can't use more than 1 Temperamental Weather Poke-Power each turn. It has weakness against Lightning 2. 
Rain Castform