The end of Destiny 2‘s Episode Echoes led guardians to find Temporal Anomalies in Encore: Coda—just when you thought you were free. These mysterious artifacts are bits and pieces of different versions of Maya Sundaresh and Chioma Esi, visible through the Vex simulations.
Temporal Anomalies feature as one of the several secrets in the Encore Exotic quest, including several hidden chests and the Choir of One Exotic auto rifle. If you venture into Encore, you can also find upgrades for the new Vex-inspired weapon, including new catalysts and a better intrinsic.