Hextor
Hextor is the God of War, Tyranny, and Fitness in the Greyhawk Campaign setting for Dungeons and Dragons. He is the sworn enemy of his half-brother and fellow war deity Heironeous. His mother is Stern Alia the Goddess of Law and Motherhood and is the one responsible for starting Hextor's slide into Evil after she gave her blessings to Heironeous instead of Hextor. He also had a second brother named Stratis who was killed in some unspecified way.
Hextor generally appears as a grey skinned monstrosity with six arms, each of which wields a different type of weapon. In his more relaxed moments or in his duties as the God of Fitness Hextor prefers to appear as well built human. In this second form he looks very similar to Heironeous but saying so to his face will likely get you slaughtered. However when this bad ass of the battlefield needs to get to wrecking he shifts to his final form which kind of looks like Ganon if Ganon was actually threatening and not a complete tool.