The society held its secret meetings in the shadowed Tirisfal Glades, where the high elves had first settled in Lordaeron. Thus, they named the secret sect the Guardians of Tirisfal. The mortal champions who were chosen to be Guardians were imbued with incredible powers of both elven and human magic. Though there would only ever be one Guardian at a time, they held such vast power that they could single-handedly fight back the Legionâ€™s agents wherever they were found in the world. The Guardian power was so great that only the Council of Tirisfal was allowed to choose potential successors to the mantle of Guardianship. Whenever a Guardian grew too old, or wearied of the secret war against chaos, the Council chose a new champion, and under controlled conditions, formally channeled the Guardian power into its new agent.
As the generations passed, Guardians defended the masses of humanity from the invisible threat of the Burning Legion throughout the lands of Arathor and Quelâ€™Thalas. Arathor grew and prospered while the use of magic spread throughout the empire. Meanwhile, the Guardians kept careful watch for signs of demonic activity. Sargeras bided his time until the youthâ€™s power manifested itself. By the time Medivh had reached his teenage years, he had become very popular in Azeroth for his magical prowers and often went off on adventures with his two friends: Llane, the prince of Azeroth, and Anduin Lothar, one of the last descendents of the Arathi bloodline. The three boys constantly caused mischief around the kingdom, but they were well liked by the general citizenry.
When Medivh reached the age of fourteen, the cosmic power inside him awakened and clashed with the pervasive spirit of Sargeras that lurked within his soul. Medivh fell into a catatonic state which lasted for many years. When he awakened from his coma, he found that he had grown to adulthood, and his friends Llane and Anduin had become the regents of Azeroth.