ref: c834bdadf2f3e38d684f798dfa67d7cd751a6a65
dir: /engine/battle/move_effects/rain_dance.asm/
BattleCommand_StartRain: ; 37bf4 ; startrain ld a, WEATHER_RAIN ld [Weather], a ld a, 5 ld [WeatherCount], a call AnimateCurrentMove ld hl, DownpourText jp StdBattleTextBox ; 37c07