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. However, unlike the other members of his group, this Goa'uld did not chase and attack SG-1, instead opting to hide by the base of the Stargate platform for his chance to depart when SG-1 opened the Stargate.
After the death of all of his companions, the Goa'uld finally got his chance to escape, emerging from hiding and following SG-1 through the wormhole to the fifth planet. His presence was quickly spotted by SG-1, but the Goa'uld ignored them in favor of gazing around at the new planet with obvious delight. Finally taking notice of SG-1 who trained their weapons on him, the Goa'uld simply smiled and excitedly told them how he had been trapped for one hundred and forty seven years on the fourth planet of the Trial and was now free. O'Neill threatened the Goa'uld to walk away as they would not allow him to take any of them as a host, but he dismissed the worry, believing that the "curse" of the nanocyites was actually a lie and that he was fine in his current host.
As the Goa'uld talked about his plans to return to his homeworld, the nanocyites took deadly effect on him, sending the Goa'uld to his knees in agony, shocking him as the Goa'uld thought he was immortal. As he writhed on the ground, the Goa'uld begged for help from SG-1 who were mesmerized with horror as the Goa'uld's skin started dissolving before their eyes as he began disintegrating. SG-1 backed away from the gruesome sight, but O'Neill decided to return and shot the Goa'uld dead in an act of mercy so that he wouldn't have to suffer. When SG-1 later returned to the Stargate to leave the planet, they discovered that the Goa'uld had melted into a large smelly puddle. The only part of the Goa'uld left intact was his robes as his flesh, muscles and even bones had dissolved. (SG1: "The Barque of Heaven")