History of Catalytic Collection

Catalytic Collection is a triumph worth 5 points: "Unlock catalysts for the Barrow-Dyad."

How to complete

The triumph tracks the four Barrow-Dyad catalysts from Episode: Heresy (High-Impact Reserves, Hatchling, One for All, Target Lock). Each is unlocked by its own quest with the weapon equipped:

1. High-Impact Reserves: run Court of Blades on Expert with Barrow-Dyad equipped to start "A Needle's Path". The second step is another Expert run using only long-range weapons (Scout Rifles, Linear Fusion Rifles, Sniper Rifles) alongside the Dyad. The catalyst drops from the final chest.
2. Hatchling: in The Nether, find the hidden platforms inside the Tenchwork tileset (pull out your Ghost to reveal them), then use the device on the left wall to open a portal and start "A Hammer's Path". It needs Path of Ambition rank 12 and an Expert Nether run with close-range weapons (Shotguns, Glaives, Swords).
3. One for All: complete The Sunless Cell strike with Barrow-Dyad equipped to start the quest chain (Act 3; The Gamer lists the quest as "A Hundredfold Path" via a search summary, so treat the name as unconfirmed).
4. Target Lock: collect three Coalescence of the Knife (the "Mission Dossier: Blade Logic" quest, a hidden rune chest at the Founts, and a hidden Cabal chest at Hull Breach), then open the portal in Hull Breach to start "A Silken Path".

Sources were written during Act 2/Act 3 of the episode and details may have changed since.

Rewards

5 triumph points. It is part of the Barrow-Dyad exotic quest triumphs; the exact seal was not stated by the sources I opened.