Mat will be the left arm
Perrin will be the right arm
Aviendha the left leg
Elayne the right leg
Min the torso
Rand the head


Moridin will be at the joystick controlling their various movements.

Elayne will make bullets out of Mat's ter'angreal. He'll have cannons attached to his face to shoot out said bullets at all of the Dreadlords.

Elayne's babies will serve as the toes (since she's the leg) because she's a lot shorter than Aviendha and such a height difference could cause the Superhuman to tip over and lose the Last Battle.

Egwene will create Cuendillar shinguards for Elayne and Aviendha.

Min's job will be to hang on really hard to Perrin because he'll keep trying to detach and run after Faile to make sure she's safe.