The Cult of Osiris wants something. Whatever it is, it might be obtained through violence. The Trials are a competition built to identify Guardians who never lose.

The Warlock Osiris vanished into exile years ago. Unlike solitary Toland, Osiris left a network of acolytes and admirers who carry on his work.

The Cult invites only select Guardians to their tournament, and only in teams of three. The Cult wants effortless teamwork, inexorable momentum, and something else: consistency, perhaps, or luck, or fate. Any fireteam that loses three matches is ejected from the tournament. Fireteams that win again and again earn spectacular rewards.