The hatred and rivalry between Azuharr and Tazar dated back to almost a thousand years ago. Azuharr was a black dragon, evil and twisted, like all black dragons. Tazar was a silver dragon, wise and well-meaning.
When Tazar was just a teenage dragon, in his eighties, he lived with his mother in their lair, a huge cavern in the depths of a mountain in the Metallic Mounts. Tazar would become an adult in a few years and leave his mother's home, but the time had not yet come.
One night, without warning, two black dragons attacked them by surprise. They were father and son. The oldest of these was a great wyrm, an extremely old and fully developed dragon, powerful and huge. The other was Azuharr, an adult dragon somewhat younger, but also very dangerous. Somehow they had managed to find out the location of the lair, where his mother had accumulated a prodigious treasure for centuries.
Tazar and his mother fought against the intruders bravely. In an epic battle, one the bards would have sung for generations, if any had been privileged to witness it, Tazar and his mother managed to bring down and destroy the great wyrm. Unfortunately, Tazar's mother received a fatal wound. Before dying, his mother told him to flee, knowing that Tazar would have no chance against the adult dragon, enraged by the death of his father. She also asked him to never return to the lair, as it would put him in serious risk.
In the most difficult and painful decision of his life, young Tazar left his mother before she lost her last breath, and managed to flee and save himself, not without great difficulty. In the following years, some humans helped the dragon. Without such support he might not have survived and therefore Tazar established a bond of appreciation, committed to the human race.