Deucem

(デュケム, Dyukemu)

Deucem is one of the 4 Leaders of Tusk and a rather mysterious fellow. Like the other members of Tusk he wears a mask, covering his entire face. He lead the attack on Ulbaks. From what we have seen, he is a very formidable Shard Caster, easily disposing of Ginga, whom he shares a past with. Deucem was Ginga's Captain, and Ginga thought that he had killed his beloved Karen, which was a misunderstanding. Ginga also notes that Deucem was known for caring deeply about those that served him, and Ginga respected him greatly for that.

When Karen failed a mission to sabotage the defense system in Neotopia and returned injured, saying that it was nearly impossible, Deucem was angered and was about to kill her on the spot. Ginga pleaded for her life and promised to complete the mission in her place. However, he too failed the mission and was assaulted by a number of Neotopian Knights. He lost consciousness and when he regained it, he saw Deucem standing over Karen with his drawn sword. Enraged, he attacked Deucem, but Deucem severely wounded him and left him for dead.

Deucem explains to Ginga that after he left to go on the mission to Neotopia, she pleaded with him to allow her to help Ginga, but he refused. She, however, disobeyed orders and went after Ginga anyway. When he discovered what she’d done, he chased after her. She saw Ginga lose consciousness and she ran to fight the Neotopians to save him, but they ended up killing her. Deucem arrived and killed the Neotopian Knights, which is when Ginga regained consciousness and attacked him.

After battling Zed, Deucem falls off one of Tusk's floating pieces of land. He later shows up again, sporting a scar across his chest which he received from his battle with Zed. He battles Zed one last time, but faces defeat once again. Deucem is presumed dead after three fire shards, placed on his back by Zed, explodes.His spirit is

Source: Wikipedia