His Name is Dragon by Rey Wicks

His Name Is Dragon is an epic fantasy about destiny, power, and sacrifice set in the world of Midrel Istan, where gods live among mortals and ancient conflicts threaten the fragile balance of the world.
Dragon, the cursed son of the king of the gods, Baze, is born in the city of Adurak as the Prince of the gods. From childhood, Dragon knows little of the burden placed upon him. His world is simple: the palace of Adurak, his brother Ryu, and the two dragon hatchlings he raises and loves as family, Aero and Sigura. Yet Dragon carries the most powerful and feared gift known to gods and men alike, a power tied to a prophecy that could either save the world or destroy it.
As Dragon grows into adulthood, the truth of his destiny begins to unfold. Tensions between gods and humans rise, led by the ambitious and dangerous King of Men, Ansel Bolin. In a desperate attempt to prevent war, Dragon offers his own life to Ansel in exchange for peace between their peoples. But the world stands on the edge of catastrophe, and it becomes clear that Dragon's fate is far more complicated than a single act of sacrifice