There is always a draw back for disguising as someone else, that is, the fake can never perform as well as the real deal.
Hence, when a player sends out an invitation for a fight, the system will still reveal the opponent’s profile information. However, a player could choose to hide their profile as a choice. It was to protect one’s dignity if they happen to be defeated. In this case where both sides had no choice to hide their profile information, who in their right mind would choose to accept a Hovering Amphitheater challenge? The penalty for losing would be the deduction of levels and the Inheritance fragments!
However, when a player walks to you and reveals their profile information and name tag, even if they had registered the invitation with a hidden profile, players would take it for real and accept the fight.
Sigh.. the things people would do to cheat and lie…