In about 1852, this Goa'uld joined a group of six others that undertook the Trial of Ra together to gain a position in Ra's upper ranks. Together, the group made it through the first three planets of the Trial, but were unable to complete the fourth planet in time for an unknown reason, possibly being unable to find the Stargate address and password in the allotted time. Due to the nanocyites in their blood and the rules of the Trial, the group was unable to leave the planet in their current hosts without dying. Over time, the group located the spot on the back of the Sphinx's head where the address and password were hidden and did their best to erase the symbol signifying its location to strand anyone else that came through so that they could have an escape route.
In 1999, SG-1 was forced into the Trial of Ra by the System Lord Mat in an effort to get revenge for the death of Ra. While walking across the planet, SG-1 discovered the presence of other Goa'uld when one of the group, driven insane with desperation, attacked Colonel Jack O'Neill to take him as a host and was killed in the process. As SG-1 examined the Sphinx for clues, three of the others attack, firing at them with a sonic weapon that created explosions near the team. After Teal'c opened fire with his staff weapon and Colonel Jack O'Neill with his MP5, the Goa'uld retreated into the nearby gullies. As Dr. Daniel Jackson worked on the riddle, Major Samantha Carter spotted two more Goa'uld at their rear and they were quickly driven off by fire from O'Neill.
Laying down covering fire, the team retreated into a nearby gully and determined that they were facing five Goa'uld, three of whom were between them and the planet's Stargate. For better safety, SG-1 headed for a group of trees nearby, but were attacked by two Goa'uld as they made their way across the last open ground. Once more laying down covering fire for each other, they made it to the trees and the two Goa'uld retreated. However, they returned shortly after and the Goa'uld chased SG-1 for three and a half with neither side having any success in harming the other side.
Finally, after over an hour of no contact between the Tau'ri and the Goa'uld, this Goa'uld made his move, attacking Daniel with a cable fired from a spring-loaded crossbow attached to a winch that he used to pull the archeologist away from the group, across a distance of ground and to where the Goa'uld was waiting. The Goa'uld moved in on Daniel as he lay helpless, but before he could do any more harm, he was shot in the head by O'Neill. In a final desperate attempt to survive, the Goa'uld opened his host's mouth to leave as a symbiote, but his head was obliterated by a blast from Teal'c's staff weapon and his body was riddled with MP5 fire, killing him. (SG1: "The Barque of Heaven")