Buguese

Buguese, a pale skinned Invectid, is the leader of the Big Four and second only to Mantid himself. He is one of the Spider Rider's most frequently encountered enemies, and they share mutual hate of each other. Personally, he hates Hunter Steele for the many defeats at his hands. Buguese has remained a loyal and faithful servant of Mantid, but over time, he lost faith and did not trust Mantid anymore. He plans to destroy the Spider Riders and take control over the Invectid Nation from Mantid. Lord Mantid gave him a machine called Dark Opal and told him to destroy the Spider Riders with it. However while battling them it absorbed the power from Hunter's Oracle keys, keeping Buguese from betraying Lord Mantid. He removes Aqune's mask, which was endowed with some of the Oracle's power by Lord Mantid and commented that over the years she had become someone precious to him. He is nearly killed by Mantid when one of his attacks nearly sends him off a cliff. He was saved by Beerain and Stags.