Pythor P. Chumsworth is a self-proclaimed general of the Anacondrai tribe as well as the former Serpentine King. He was sealed away with his brethren in the Anacondrai Tomb after the Serpentine's defeat in the Serpentine War. After being freed by Lloyd, he united his fellow Serpentine and unleashed the Great Devourer on Ninjago. However, the scheme backfired horribly and Pythor became one of the beast's first victims, along with Master Wu. Long thought to be deceased, Pythor resurfaced during the Nindroid crisis, allying with the Digital Overlord to seek revenge on the ninja. Once again, his schemes were foiled after he was shrunken by a shrinking pill, and the Golden Master was destroyed. Afterwards, he was sent to Kryptarium Prison.
The ninja visited Pythor at the prison after finding out Chen needed him for a spell that would permanently transform his followers into Anacondrai. The Anacondrai Cultists ultimately captured Pythor and used him to fulfill the spell. Pythor escaped and found that the Book of Spells would allow them to summon the spirits of the Anacondrai generals. After the spell was cast and Chen's army was vanquished, Arcturus restored Pythor to his original size. Pythor then parted ways on understanding terms with the ninja.
Due to his villainous past, a statue of Pythor was placed in the Ninjago Museum of History. On the Day of the Departed, Pythor went to the museum and discovered the ninja's old adversaries had been resurrected. He went to the Corridor of Elders and fought Lloyd, but after realizing he couldn't win the battle, Pythor fled the scene.
Years later, Pythor was incarcerated at Kryptarium Prison again by the New Ninja. At the prison, he re-encountered with the also-incarcerated ninja after freeing Aspheera from prison. Around the same time, Pythor overheard the Crystal King recruiting other past enemies of the ninja for his Council and he himself was eventually recruited and freed from jail by Kabuki Mask. Subsequently, together with Vangelis, Aspheera, the Mechanic and Mister F, he took part in a raid on the Monastery of Spinjitzu, where they obtained the Golden Weapons, which they used to help the Crystal King acquire a physical form. The Overlord then gifted the Crystal Council with new armor and powers to serve him. During the Crystal Infection, Pythor gained a platoon of Crystal Warriors in charge to find the ninja, but failed. When the final battle ensued, Pythor was quickly defeated by Jay, who took his nunchucks and left the Anacondrai lying on the warehouse roof. After the Overlord's defeat, Pythor and the rest of the council were sent to Kryptarium Prison again.
