ref: c4e3f2bbc23fe731deb177ed5743fdc6ac6572e0
dir: /engine/battle/move_effects/rain_dance.asm/
BattleCommand_StartRain: ld a, WEATHER_RAIN ld [wBattleWeather], a ld a, 5 ld [wWeatherCount], a call AnimateCurrentMove ld hl, DownpourText jp StdBattleTextbox