Rain Dance causes a rain shower that lasts for 5 turns, and induces these additional effects:
- The power of Water-type moves increases by 50%.
- The power of Fire-type moves and SolarBeam decreases by 50%.
- The accuracy of Thunder and Hurricane rises to 100%.
- Pokemon with the ability Dry Skin recover 1⁄8 of their max HP each turn.
- Pokemon with the ability Swift Swim double their speed.
- The move Weather Ball changes to Water type and doubles in power.
- The moves Synthesis, Morning Sun and Moonlight recover 1⁄4 of the user's max HP (instead of 1⁄2 HP normally).
- Castform changes to it's Rain Form