Seasonal Arena

Legend Defiant Battleground: Cosmodrome

Coordinate your fireteam to take on this Legendary challenge. Rescue captives from Shadow Legion prisons across the system.

Overview

Legend Defiant Battleground: Cosmodrome is the Legend-difficulty version of Defiant Battleground: Cosmodrome, one of the three Defiant Battlegrounds introduced in Season of Defiance alongside Destiny 2: Lightfall. Rescue captives from a Shadow Legion outpost. It is a Seasonal Arena-type activity set in the Cosmodrome. Defiant Battlegrounds are launched from the destination or the H.E.L.M. Battlegrounds playlist and use the Ascendant Scepter from the Lightfall opening mission. Defiant Battlegrounds are listed as a three-player matchmade activity.

Encounters and mechanics

The layout matches the base activity: a Shadow Legion Pyramid outpost holds captives; cross the Dry Sea, collect Taken Essence and open portals. The boss is Zatocc, Devoted to the Witness. See Defiant Battleground: Cosmodrome for the step-by-step route, the Balefire / Taken Essence cycle and the Ascendant Plane sections. Expect tougher Champion and combatant pressure than the base version.

Rewards

Same Legendary loot pool as the base Battleground (Glimmer, seasonal Defiant weapons and Luminopotent armour; Defiant Keys open the bonus chest). Defiant Battlegrounds are now in the Vanguard Ops playlist after Destiny 2: The Final Shape rather than being seasonal-only.

Related

Defiant Battlegrounds, Shadow Legion, Taken.

Location: Cosmodrome

Community guides & sources

Category: Activities · Last edited 2026-10-10 08:37:18 UTC