Gathon was the former lizard man chieftain of his tribe until he was enslaved and tortured by the priestesses of nix.
When he was found by Baal, he wished only his own death due to the shame of being ursurped and left for dead.
Baal however had other plans. Seeing his potential, he roused The beast from his stupor, equipped him in the magical plate armor and weapons of his captures, and restored him to health. He filled his heart with purpose , giving him the fury and desire to seek revenge, slay his enemies, and reclaim his tribe.
In this Baal would support his claims, in exchange for his fealty.
Combined with his scaly hide, gathon has become a bulwark of defense against their opponents