Welcome to PokéCommunity! Register now and join one of the best fan communities on the 'net to talk Pokémon and more! We are not affiliated with The Pokémon Company or Nintendo.
Wouldn't the easiest way to see if that would work would be to test it on a ROM you have? I think that it wouldn't work as well as you except. I don't think that in Generation III there was 4 way battles between trainers (feel free to correct me if I'm wrong). But if it is in the game I think...