History of Choral Mind

The Choral Mind is a trio of Vex Hydra bosses overseeing the Conductor's planetary-core operations in the Encore Exotic mission. The three are Parodos (Overture), Stasimon (Concerto) and Exodos (Coda), and each is a separate fight.

Stasimon mechanics

Stasimon idles inside a Vex shield in a large cavern connected to the Ishtar Research Facility, and it is the final boss of Encore: Concerto. Guardians must install Vex Module//CONNECTION units to lower its shield. A Vex Conflux moves Stasimon and its shield to the left or right side, which sets where the damage phase starts. Once the shield drops, Stasimon returns to it and the cycle repeats until half health. At that point Vex Module//ACCESS opens portals to the left, right and centre sections, and Connection Modules are used again until Stasimon reaches a quarter health. It then raises a final barrier and flees to the centre, where the exposed pyramid must be destroyed to finish the fight.

See Hydra for the wider faction.