History of Chamber of Starlight Solo Mastery

Complete the Chamber of Starlight Lost Sector in The Dreaming City on Master difficulty without a fireteam. Worth 5 triumph score.

How to complete

1. Requires Forsaken for access to The Dreaming City. Launch the Master version of the Lost Sector alone (do not bring a fireteam).
2. Expect about seven Champions: Unstoppable Phalanxes and Overload Hobgoblins, plus swarms of Taken fodder, with Solar and Void shields and Solar burn.
3. Bring an anti-Champion weapon for each type. Guides recommend a Linear Fusion Rifle for the long sight lines, Leviathan's Breath for Unstoppables, and a hand cannon such as Le Monarque for Overloads.
4. Fight from distance and retreat toward the entrance when pushed, then kill the boss Wizard at the end.
5. Subclass suggestions from guides: Nightstalker (Hunter), Sunbreaker (Titan), Dawnblade (Warlock).

Notes

• A flawless version exists: Chamber of Starlight Flawless Solo Mastery.
• Sources describe Master/Legend clears generally; the exact requirement text is the in-game description. Whether a seal rewards it is unconfirmed.