The four-armed leader of the Skeleton Army, Samukai was the ruler of the Underworld prior to Garmadon’s arrival there. He formed an uneasy alliance with Garmadon to conquer NINJAGO and obtain the Four Weapons of Spinjitzu. Samukai led the Skeleton Army to the surface, but he was often frustrated by just how dense many of his troops were. When he attempted to use all Four Golden Weapons at once, he was destroyed by the energy discharge.