Toa Rexion

Leader of the Maxions on the mysterious planet.

Arrival
While on a mission to bring supplies to the Maxion Moon Base, Rex and his crew were then pursued by an incoming Destron ship. They were forced to land on the nearby planet. With the the threat of being discovered by the Destrons, the crew abandoned ship and used the Transformation chips to blend in with the local wildlife.

Rex found himself hiding from this planet's T. rex. He was found, but saved by Allkrotron who had scanned an alien Allosaurus. Rex managed to scan the T. rex had assumed it's identity. He heard an explosion and contacted Leo to know what happened. Leo revealed that the ship was bombed, Rex then gave the order to Allkrotron to return to the ships's remains.

Personality
Rex's personality is reminiscent of Optimus Prime from the Transformers franchise.

Trivia

 * His robot mode design resembles that of Beast Wars Megatron.
 * His name, "Rexion", is a pun on "Tyrannosaurus rex".
 * His coloration and mask seem to be a homage to Takanuva.