Here are two bugs of da which not everyone knows:
1. When someone invites you to a duel and you don't accept and he duels someone else then after he just finishes his duel (if he looses) and you accept his earlier invite then he wont have armor as he was still spawning.
2.If someone invites u to a duel and he goes outside da area but in the same building and you accept his invite he will still be spawned inside da to fight the other person, though he was not ready and left da