It all depends on who's faster, Mustadio can only beat him if he can actually get haste, or its over since Orlandu has the Excalibur. Beowulf vs Orlandu is almost even.
I think that Zalbag or Balbanes could take him on, the storyline says they have a record like him.

Edgar: Neither do I understand how can somebody so old be so fast, or so strong, unless he was even stronger when he was young, then that would really make him TG Cid.