Academies are "clans" within Amity Arena in which players can join each other to participate in events, donate cards to each other, or even top the leaderboards!
You need 1,000 Lien to create an academy. Academies will stay within the Kingdom the headmaster is currently in.
Public academies are open to all players within the set trophy limit.
Invitation academies are open to players who submit an invitation to join.
Private academies are closed to the public.