Also known as: 死竜フォルサクス
Lichdragon Fortissax is a character in Elden Ring. He is a winged Dragon that can conjure and wield Lightning.
Fortissax is the brother of Lansseax and was a good friend of Godwyn The Golden.
Fortissax is a secret, optional boss faced in the final phase of Fia's quest, that is nonetheless important to the main story.