ElvisTheKing
21
You can not fight in this battle. Duel of Truth
If you are in a group with people from the other faction, and any of those people have entered the Duel, you will not be allowed to enter and will get the same message that is given when a battle is full.
About not being able to enter Duel while being in group , this is just how it works. Even if your group had opposite faction members and they left you might still need to disband group to be enter duel. Also there is no such thing as 'full battle' for main event for Duel of Truth.