Pator and Rondok

A viciously-tempered low-level demonic minion who was originally a shock-troop assassin working for higher-level demons, Pator and his brother Rondok were Noxons that were genetically altered by other demons and then captured by the Forces of Good and experimented on in Magic School in a class that Leo Wyatt taught.

Pator and Rondok were hammered with spells, splattered with potions and repeatedly endured vanquishing attempts. After Leo was taken by the Angel of Destiny, Pator and his brother escaped containment. When Magic School is later claimed by Evil, Pator and Rondok returned to seek their revenge on those who caused them so much pain - the five young witches who were Leo's students.

The two Noxons were able to seek vengeance on and kill all but two young witches, Ryan and Jen, who escaped and went to the Charmed Ones for protection. Rondok suggested to go after Ryan and Jen in hopes of drawing Leo out and making him pay for the excruciating vanquishes he made the two demons endure. However, Rondok's need for vengeance leads him and Pator to Halliwell Manor where Piper, Phoebe, Paige, Ryan and Jen have prepared a vanquish for the two demons.

Rondok is vanquished but Pator survives only to be captured by a Bottom Feeder known as Jondar. Jondar planned to feed on Pator's powers while having his tentacle drain the magic from Pator until Piper sought to gain information from Pator about the Ultimate Power and how to bring Leo back, after which Jondar planned to offer a trade to the sisters - Pator in exchange for immunity. However, Pator managed to vanquish Jondar and escape, only to be vanquished by Billie and Christy.

First Vanquish
Ryan, Jen and the Charmed Ones discovered that to vanquish Pator and Rondok, they would have to be sent to the Astral Plane where time stops upon vanquish. To do so required the following potion and spell:

Book of Shadows Potion
Mix the following herbs: hemlock, wolf'sbane, Sumac petals and Imp powder.

The Spell

 * Demon of Fire, Demon of Pain,
 * We banish you to the Astral Plane.

Appearances
Pator appeared in a total of 2 episode throughout the course of the series:
 * Season 8
 * Generation Hex
 * The Torn Identity