Thread:TheDigger1/@comment-27109830-20171210214332/@comment-26220697-20171214235059

From what I remember, they're both incredibly powerful anime kings who were based off characters from different mythologies. They were also the first people to carry special titles that many other characters in their series have gained, with Gilgamesh being the first Heroic Spirit and Sinbad being the first Dungeon Capturer. Due to this, they possess a wide arsenal of powers from various magical sources, Gilgamesh and his Noble Phantasms and Sinbad with his Djinn. Both have connected themselves to all-powerful evil spirits, Angra Mainyu and David respectively, and wish to use their power to bring their vision of the world into reality.

That's all I remember for now.