I'm saying, in a Triple Battle, what would happen if you use Fire, Water, and Grass Pledge at the same time? Would it depend on which two go first, or something ultimate?
The fastest pokémon would move first but would not attack. The second-fastest pokémon would move second, use their move at 150 base power, and activate the combined effect of the two fastest pokémon's pledges. The slowest pokémon will move last and use their move as normal (normal base power, no extra effect).