STORY: When Makuta was about to leave Aqua Magna to face of against Mata Nui he created Cossy to watch over Aqua Magna in his absence. When the time came for Makuta to leave Cossy betrayed Makuta by trying to strike him down with a blast from his electro sword. Makuta (not experiencing any pain from Cossy's attack due to his large amount of power) Struck Cossy down with a blast of Shadow. After Makuta left, four matoran (who had escaped from Makuta's Large Robot body) Repaired Cossy's injurys and brought him back to life. From that momnet Cossy vowed to destroy Makuta no matter the cost. Cossy trained for hours getting ready for his 'future fight', when Aqua Magna shook. Aqua Magna became fused with Bara Magna to form Spherus Magna.
Even though Makuta was destroyed Cossy vowed to stay true to Mata Nui and become a Toa. Now Cossy trains with Takanuva to overcome his dark side and in his spare time hunts Rahi.
NOW TO THE MOC!
A close up on cossy's head.I didn't have the first surge.