--- Ultimatrum or Matrix (Matoran/Toa) is a Dark Hunter and was once Toa of water. Much like Brutaka, Ultimatrum is a traitor to the toa. His toa and matoran name was Matrix, but when he gained his huge size, he changed it to Ultimatrum, because he thought of himself as ultimate.

During a battle with Sharian, Matrix was knocked off of his feet. He fell into a pond of Energized Protodermis. Sharian assumed he was dead and left. Instead of it killing him, it mutated him into a hulking beast. With his new strength, he sought more powerful opponents. After killing many foes, "the Shadowed One" recruited him as a dark hunter. Now he hunts opponents like Rahkshi, Skakdi, and large Rahi.

The Protodermis didn't just make him larger, and stronger, it also made him go insane. --- Ultimatrum stands in at about 9½ inches tall, which is average for my MOCs. The name was undecided until a short time before release to the public. --- The original concept weapon of Ultimatrum can be found here: ---