Went to the challenge arena area to fight but no longer have any friends listed in the challenge arena area. What happened? And how do I make new friends to fight in challenge area? The friends who were previously listed there were friends of mine in Facebook who already play (or used to play) Dragon City.

Not sure what the cause is but I think it is something related to facebook as I lost friends from a few games not just DC. So far though it does appear to only be friends who are not active in the game(s) any longer. FYI closing this as this topic has been brought up by another user, feel free to continue the conversation there. And you can go HERE to find new friends.