Samukai
Samukai was a fearsome Skulkin general and the former King of the Underworld. At some point, he died and was reborn as a Skulkin in the Underworld where he united the army of the undead and became their ruler. Upon Garmadon 's banishment, Garmadon took over the Underworld and became the realm's new ruler. Nonetheless, Samukai retained a position high on the Underworld hierarchy as Garmadon's second-in-command and the retaining the title as King while carrying out his superior's will. . Samukai and the Skulkin fought against the ninja and claimed the Golden Weapons . When Samukai confronted Wu , he took hold of all four weapons, but their immense powers vaporized him and created a portal . Garmadon then escaped the Underworld and wreaked havoc in Ninjago . . A statue of Samukai was later placed in the Ninjago Museum of History . When Cole accidentally opened the Departed Realm , Samukai's ghost escaped and possessed the statue in the museum. Samukai set off to exact vengeance, in his case going after Jay with help from Krazi and Frakjaw . Samukai fought Jay at his parents' junkyard before his statue was shattered to pieces by Jay's lightning -infused nunchucks . As a result, his ghost's was sent back to the Departed Realm. .