|This character exists primarily or exclusively within the Pre-Super Genesis Wave continuity.|
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
A rhinoceros, he gained mastery over the element of earth, and then the elements of water and wind from his comrades Suguna and Nusgau. The three joined forces after their Order's destruction, and after teaching each other their respective magics, they set out to capture control over the elements of fire by making contact with the sun. Despite their cooperation, Agunus held back part of his knowledge regarding earth, and so thought to surpass the others by reaching the sun first. However, he made the mistake of betraying the others first and the other two copied his trick. When Nusgau made his bid to take the lead, Agunus grabbed Nusgau, and Suguna grabbed Agunus and they all fell into the sun together, fusing them together into Ixis Naugus.
Agunus is one of the three Wizards who tormented Ixis Naugus' mind, in attempt to mutate his body alongside Suguna and Nusgau.
- Ian Flynn revealed that Agunus and his compatriots were not actually participants in the Forgotten War, but became members of the Order later.