Sleven
Sleven was an Anacondrai cultist serving Master Chen . Sleven was a somewhat reluctant cultist. Although he was all for Master Chen, he was afraid of snakes and the thought of being turned into one made him nervous. Sleven's most important role was as an Anacondrai Battle Mech pilot, making him a mobile strike force for Chen's army. [ 1 ] . After being transformed into an Anacondrai, Sleven and the cultists began to spread out and take over Ninjago , eventually facing the Elemental Masters and their allies at the Corridor of Elders . The Anacondrai cultists proved too strong, leading Garmadon to sacrifice himself and release the Anacondrai Generals to banish Chen's followers to the Cursed Realm , including Sleven. Sometime after the defeat of the Anacondrai cultists, the ninja fought against the physical manifestation of the Cursed Realm, the Preeminent . After Nya drowned the beast, the Cursed Realm was flooded and destroyed, killing the majority of its prisoners, including Sleven. .