https://www.polygon.com/2017/9/15/16315472/destiny-2-trials-of-the-nine

Destiny 2’s weekend player-versus-player event, Trials of the Nine, is now live, and the best thing about it so far is the spectacular way in which it introduces the competitors to each other.

For the uninitiated, Trials of the Nine is Destiny 2’s replacement for the original Destiny’s Trials of Osiris. Available only on weekends for 72 hours — from 10 a.m. PT on Fridays until the same time on Mondays — Trials of Osiris was a high-stakes three-on-three elimination mode in which teams attempted to win nine matches before they lost three.