Belzerub

Belzerub is the Warrior of Death found in Ember Island, his main ability is the extension and resistance of his armor. He is the 3rd most powerful warrior of all the Warriors of Death.

History
Belzerub was present for a long time in Ember Island disguised as the Elder of the island, Josh was probably the only one that noticed it, and as Belzerub tried to find ways to extract the power of the God, he eventually was visited by Matt, Harm, Takeda and Luke in order to awaken the God, the group took Josh and Belzerub was forced to wait.

Once they returned, they were greeted by Belzerub still in his Elder disguise, however, after Matt watched him with his Eagle Vision, he saw his true colors and they escaped to meet Joseph, a friend of Josh. Belzerub found them and trapped both Matt and Josh.

Belzerub then realizes that they have escaped and eventually, due to his actions, his disguise degrades itself showing his true self. He proceeds to the Sanctuary where he fights both Matt and Josh alone until he is blasted by Louis.

He fights Louis and eventually he is hit by a point-blank Yasaka no Magatama, with not much effect and proceeds to attack Josh which dodges the attack. However, after deceiving Matt by changing the direction of the tentacles, Josh saves Matt from being impaled by becoming a shield to him.

As Matt awakes the powwer of fire extinguishing his tentacles, Belzerub tries to get away from him by blasting him, all in vain, until he is impaled by Matt who releases Kaen Kasõ to destroy Belzerub as he cursed him and his family.

Trivia

 * Belzerub is the smartest of the Warriors of Death.
 * He has no elemental power link.
 * His death theme is "Spirit".