Altars of Sorrow: Brutal Haste

Triumph: "Rapidly defeat a Tier V Nightmare boss." The time limit is not listed here; the in-game triumph tooltip shows it.

== How to complete ==

1. Reach the boss tier of Altars of Sorrow with as much timer banked as possible by killing Hive adds and Nightmares quickly.
2. Have a heavy-damage loadout ready for the boss (e.g. the daily boss's matching weapon) and a Well of Radiance or Tether to amplify damage.
3. Clear the immunity-phase Nightmares quickly so the boss shield drops fast. It is easiest to do this as a coordinated fireteam.

Completing Altars of Sorrow: Final Phase happens along the way.

Altars of Sorrow is a player-started horde-style public event in Sorrow's Harbor on the Moon, introduced with Shadowkeep. Teams defend altars against waves of Hive and Nightmare enemies (tiers I-V) before a boss tier. The description below reflects the Shadowkeep-era version of the event.

== The event in brief ==

• Tiers I-II: 4-5 Nightmares. Tier III adds shielded Wizards that need cleaver drops from Accursed Swordbearer Knights. Tiers IV-V have 7-8 Nightmares and more Wizards.
• The timer starts at 60 seconds. Killing regular Hive adds 1 second, and a Nightmare that reaches an altar and sacrifices itself costs 10 seconds. Reports differ on whether killing a Nightmare adds time; one report says 10 seconds.
• The final tier is a boss rotating daily: Nightmare of Phogoth (drops Blasphemer), Nightmare of Taniks (drops Apostate) or Nightmare of Zydron (drops Heretic). The boss becomes immune periodically and spawns Nightmares that must be cleared or they sacrifice at the altar.