The Edge of Empire
Domos was the Warrior Priest who ruled as a general under The Otherworlder. He worshipped the Otherworlder as a god and jealously coveted the Otherworlder’s attention.
Domos expected to win, but also planned for defeat. When the Otherworlder moved against him, rather than joining him, Domos betrayed the Otherworlder, having given a group of adventurers the means to finally defeat the Otherworlder.