History of Monument to Lost Lights

Overview

The Monument to Lost Lights is a vendor in the Tower, between the two vault kiosks. It was introduced with Destiny 2: Beyond Light.

Acquisition

It sells Exotic and Pinnacle/Ritual weapons from past seasons that were otherwise unobtainable. Costs vary but consistently require an Exotic Cipher plus Glimmer, and some raid-origin weapons also need Spoils of Conquest (per Destinypedia).