History of Barrow-Dyad Catalyst

Overview

Apply any catalyst to Barrow-Dyad by shaping or reshaping it. There are four: High-Impact Reserves, Hatchling, One for All and Target Lock Refits, each from a hidden quest. Any one satisfies the triumph.

How to complete

1. Get Barrow-Dyad from Derealize.
2. Pick a catalyst route (guides differ slightly on details):

• High-Impact Reserves: clear Expert Court of Blades with a submachine gun (Barrow-Dyad) equipped, take the Sharp Osseous Spine, then the follow-up quest.
• Hatchling: find the secret room in Trenchway in The Nether for the Heavy Osseous Spine, raise Path of Ambition rank, then follow-up.
• One for All: clear The Sunless Cell with an SMG, then follow-up.
• Target Lock: find all Coalescences of the Knife in Hull Breach for the Warped Osseous Spine, then follow-up ending at Derealize.

1. Visit the Relic at the Enclave in Savathun's Throne World and shape or reshape the weapon, picking the catalyst in the leftmost intrinsic column.

Notes

Guides disagree on some steps; check in-game quest text.