Most guides tell you the Darkest Depths triumph needs a 30-minute Legendary clear of the full Oblation chain. The game's own triumph data says otherwise, and the timed run has a separate triumph entirely. This guide covers what Darkest Depths actually asks for, the route through the Catacombs to the Oblation tome, and how the surrounding triumphs fit together.

Destiny 2 Monument of Triumph is the game's final update, and it packs 204 Triumphs, a new Legendary Marks currency and four Tenet vendors. Here is the order to work through it: the fastest Marks, the 12 Triumphs that earn the Immortal title, and what actually has a deadline.