Harry Potter: Hogwarts Mystery is getting its first multiplayer event
That's right, the Duelling Club multiplayer event is aimed a Facebook Connected players, so if you've connected your Facebook account to the Harry Potter: Hogwarts Mystery game, you'll be able to participate in the multiplayer event.
During the event, you'll be given three tickets, each granting you an admission to participate in a duel. Then, an opponent will be randomly selected from other Facebook Connect users. If you win the fight, you get to keep the ticket, whereas if you get beaten by the opponent, you'll lose one of the tickets. On top of that, winners will receive a special reward after each and every fight.