Okay! First on! Nidoqueen, use Sky Uppercut on Pidgeot!
And Nidoking, use Earth Crush on Gyrados!
A blade of air slices through Pidgeot with enormous strength, sending it wheeling to the ground and dealing a huge amount of damage, but not knocking out Pidgeot. Gyrados, though, is not as lucky. Earth crush smashes it with full force, making it faint. But Pidgeot is still up and running.