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How to Get the Sundered Doctrine Armor Set in Destiny 2

Updated 2026-11-09 · 5 min read · by LFCarry PRO team

The Sundered Doctrine armor is the Flain set, and it drops only in the Sundered Doctrine dungeon. Each class has 5 pieces. Wearing 2 pieces turns on Sinew Stitching, and 4 pieces add Knit Together.

How to Get the Sundered Doctrine Armor Set in Destiny 2

How to get the Sundered Doctrine armor: farm the dungeon

Flain armor comes only from Sundered Doctrine, a 3-encounter dungeon. Its loot pool also holds the Exotic Finality's Auger and Legendary weapons.

  1. Solve the Riddle. It is the 1st encounter.
  2. Clear the Zoetic Lockset. In the 2nd encounter you open the locks.
  3. Defeat Kerrev, the Erased. The final boss also has a chance at Finality's Auger.
  4. Farm in a featured week. A featured Sundered Doctrine drops Tier 5 armor you can farm.
  5. Stop at 4 matching pieces. That is all both set bonuses need.
EncounterOrder
Solve the Riddle1st
Zoetic Lockset2nd
Kerrev, the Erased3rd, final boss with Finality's Auger

The weapons by encounter are in our Destiny 2 dungeon loot tables. Or let a PRO farm the set on your account.

The Flain set, farmed for you

A PRO runs Sundered Doctrine on your account for the pieces you pick, up to the full set.

Every Flain armor piece for Titan, Hunter and Warlock

The Flain set has 15 pieces, 5 for each class. The class item counts toward the set like any other slot.

SlotTitanHunterWarlock
HelmetSkull of the FlainMask of the FlainVisage of the Flain
GauntletsGrips of the FlainGrasps of the FlainReach of the Flain
ChestCarapace of the FlainScales of the FlainAdornment of the Flain
LegsClaws of the FlainHooks of the FlainTalons of the Flain
Class itemAttendant's MarkHusk's CloakWeaver's Bond
Sundered Doctrine dungeon trailer. Bungie's Sundered Doctrine dungeon trailer. It opens at 0:09 on a fight inside the Pyramid. Bungie · Watch on YouTube ↗

Sundered Doctrine armor set bonus: Sinew Stitching and Knit Together

Set bonuses turn on at 2 and 4 equipped pieces of the same set. Both Flain bonuses revolve around Threadlings.

PiecesBonusWhat it does
2Sinew StitchingDamage from combatants sometimes spawns an allied Threadling.
4Knit TogetherFor a short time after your shields break, your next few Threadling hits heal you.
  • 2 pieces. A Threadling can appear when enemies hit you.
  • 4 pieces. Those Threadlings then heal you once your shields are gone.

Mixing sets? 2 Flain pieces keep Sinew Stitching while the other 3 slots carry a different set or an Exotic.

Sundered Doctrine armor in Monument of Triumph (2026)

Sundered Doctrine launched on 7 February 2025 during Heresy, aboard Rhulk's Pyramid ship. Update 9.7.0 of 9 June 2026 gave older dungeon armor tiers and set bonuses.

Each week 2 dungeons are featured, and a featured Sundered Doctrine drops Tier 5 gear. A new featured pair starts each Tuesday at 17:00 UTC with the weekly reset. After every reset, the Destiny 2 weekly rotation shows whether this dungeon is in the new pair.

Getting the Sundered Doctrine armor with LFCarry

A PRO farms Sundered Doctrine on your account until your pieces drop. You choose the class, the tier and the slots.

  • Class. Titan, Hunter or Warlock.
  • Armor tier. Tier 3, Tier 4 or Tier 5.
  • Pieces. The slots you pick, or the full set with a discount.
  • Finality's Auger. Add the dungeon Exotic to the same order.

The armor card above shows the starting price, and the order page updates it with each choice.

From the source

Bungie (Destiny 2 manifest 245114.26.10.13)Official

“Equipable item set 3656317458 'Flain': requiredSetCount 2 'Sinew Stitching' (taking damage from combatants sometimes spawns a Threadling); requiredSetCount 4 'Knit Together' (for a short time after your shields break, your next several Threadling hits restore health). Collectibles 'Source: Sundered Doctrine': Hunter Mask, Grasps, Scales, Hooks of the Flain + Husk's Cloak; Titan Skull, Grips, Carapace, Claws of the Flain + Attendant's Mark; Warlock Visage, Reach, Adornment, Talons of the Flain + Weaver's Bond; Finality's Auger; emblem Pyramid's Pilot.”

Bungie PressOfficial

“Delve into Rhulk's Pyramid Ship in new Destiny 2 dungeon, Sundered Doctrine: today Destiny 2 launches its newest dungeon, in which Savathun guides Guardians through a Dread-filled Pyramid ship. Destiny 2: Heresy launched this week.”

Bungie (Destiny 2 channel)Official

“Destiny 2 Dungeon Trailer, Sundered Doctrine.”

FAQ

Farm the Sundered Doctrine dungeon. The Flain armor drops nowhere else.

What changed
  • New page: how to farm the Sundered Doctrine armor, every Flain piece by class, the 2 set bonuses and when to farm it.
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