Gilgamesh (Fate)

Gilgamesh, also known as Archer, is a villain from the Fate series. He is the Archer-class servant of Tokiomi Tohsaka in Fate/Zero, and later forms a contract with Kirei Kotomine that lasts ten years later into Fate/stay night. He has a fascination with Saber during both stories. In Unlimited Blade Works, he was given to Shinji Matou by Kotomine as his new servant after his previous servant, Rider, was killed by Souichirou Kuzuki.

His theme

Journey through the Mist
He is a member of Lorule Ligion as Hilda's servant.