His body was covered in Magic Wraps to stop his body from dissolving which gives him an appearance of a mummy. Sphynx can manipulate the wraps on any part of his body to be turned into a weapon. In the Demon Arc, he fought against Dimitri Stone while he was possessed and cut off both of Dimitri’s arms, but after seeing how strong Dimitri is he used his life energy to return him to normal and gave him his arms with the Magic Wraps on it as a present.
In the 1 Arc, he was shown in a flashback of how he helped 3 destroy a giant monster.

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