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OmegaNanite-2

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The Big Fat Sword (also known as the B.F.S.) is a massive orange sword that Rex can change either arm into.

Battle SawEdit

Rex is also capable of transforming the blade of the B.F.S. into the Battle Saw, a giant buzz saw that can slice through almost anything. He used it several times to slice tentacles off from huge E.V.O.s.

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