we should have a new battle command called "Band" its where 2 or more players have a certain bond and they have their own, unique attack like from Final Fantasy 4 After Years
but they should be bought from players from any town and the bond is randomly selected due to their class matchup (only 1 "Band" per matchup unless it will have more or less people on it)
the "Band" could only be bought if both players pay and agree on it and while they are in battle if one picks to use the "Band" the other gets a message to have them accept to use it
if the "Band" is accepted then the charge up doesnt start til both(or all) the players have their turn (they cant choose what to do because once they accept they start getting ready to charge up)