Acidicus Acidicus is a Serpentine minifigure from the Ninjago theme that was introduced in May 2012 . He is the general of the Venomari tribe . He has a green torso , black hands , a spiky green moulded head piece , and a moulded green snake tail piece . Description . Acidicus is coloured in dark green and has the same snake tail piece , but with slightly smaller lime skales going upward with small , black and triangular , dark red ones to the sides . His head once again has no visible lower jaw and two fangs . Unlike the others though , his forehead is sleek and resembles a snake hood , covering his four yellow eyes . His forehead is decorated with more lime scales and three white spikes on either side . He has one more sideways fang on either side of his head , under his eyes . He holds the Hypnobrai Fang Blade made from a silver tooth , a silver handle , and a round , transparent blue , studless piece printed with the Hypnobrai symbol . Background . In the TV series , his debut was the fifth episode , " Can of Worms " , when he and his tribe were freed from their tomb by Pythor and joined forces with him and the other uniting tribes . After hearing word the ninja were searching for the last two tombs , the Venomari and Constrictai staged an ambush on Kai , Jay and later Cole and Zane , nearly killing them in a venomous lake of acid ( the toxic bogs ) . However , Samurai X arrived and scared away the Serpentine , then knocked them out with sleep gas , allowing Sensei to save them . Later , Acidicus was seen along with Pythor , the ninja foiled the plan by splitting the tribes against each other with rumors , forcing the tribes to fight . He also appeared in the sixth episode " Snake King " , when Pythor P . Chumsworth was fighting all of the other generals for their staffs . Pythor won by playing the sacred flute he stole in " Can of Worms " , claiming that he would lead the In Season 3 episode 1 , Darkness will Rise , he and the other generals brainstormed on how they could win the other Serpentine back , where he recommends releasing a swarm of evil bees , which is rejected by Skales , so they go with Fangtom ' s plan , which starts with him tying up Jay . Then , he , Fangtom , and Skalidor rob a bank , followed by the ninja chasing them on the subway , while Skales attacked Lloyd . However , the plan backfires , and Skales is sent to jail . After 2 episodes of serving Garmadon , he and the other 2 free generals break Skales out of jail with the Serpentine Bus . They end up getting stuck in the Ninjaball Run , which they enter , but they lose to the ninja and retreat . Unleashing the Great Devourer . After the five tribes had united , Pythor , the new snake king , revealed his goal , to unleash The Great Devourer . Soon , Acidicus , Skalidor , and Fangtom took their staff back , because Pythor didn ' t know where to find the map leading to the four Fang Blades . Skalidor accidentally hit Acidicus , leading in a small battle . The staffs were dropped fairly close to each other , and the venom of the two staffs ran together , and changed colour . Pythor did a similar act with all staffs , put a piece of paper under the venom , and announced that they had a map to all four Fang Blades . When Pythor returned the Ninja stole all four Blades . Luckily , Pythor , having his Anacondrai trait of having the ability to turn invisible , boarded the Bounty and stole them back . They also stole a truck to get to Orabouros . The truck crashed , and all were left behind except for Pythor , who unleashed the Great Devourer , and was eaten by it . The Serpentine realized they made a big mistake to unleash the Great Devourer , and locked themselves up in the Fangpyre Tomb . Rebooted . In The Curse of the Golden Master he tells the heroes and Skales ' family about the legend of the Golden Master ( which they think is Lloyd ) . During the episode , he is seen with a green staff , and is the only Serpent to have one , which means he could be the potential leader of the new Serpentine .