After the inital years of war, Imdarill Songborn, most reknowed dragon hunter of the last centuries was called to help the Empire beat back the ferocus human barbarians.
Nandral lead the armies of Fire into the elven heartland.
Elves were losing the war until Imdarill allied the dwarves and orcs and started hunting the dragons leading the savage armies destroying towns and cities.
Imdarill first confronted Swerakdunbaal and killing him in battle, expecting the humans to break, but the humans kept pillaging and destroying the south. The humans allied themselves with the goliaths and kept pressuring the elven armies and Drurandobaal then reached out to the hobgoblin and golbin clans to attack the orcs who had to return home, leaving the south to be conquered.
The dwarfs in the north attacked Hygrodinbaal's advance, but the fire and winter armies ravaged the center of the realm.
Imdarill afraid of losing the dwarven alliance hunted down hygrodinbaal and wounded him badly, but couldn't kill him. The black dragon's army ended up in a stand still with the dwarfs without the dragon's help.
Imdarill moved on to challenge Drurandobaal and in a battle for the capital they faced off. The elven hero nearily succeeded when Nandral stepped in and fend off the dragon hunter's killing blow. Yet the dragon knew that he wouldn't survive. He and Nandral went through a ritual to instill his power into the human. In the next attack on the capital Imdarill was killed by Nandral with Zeryakobaal's help the city was burned to the ground.