The complete official Raven research-source table for Update 1.4.0.
Raven's research materials come from Legion Laboratory and Sigma Sector: Isolated Desert on High-risk Difficulty. The same two activities can drop her Amorphous Material Pattern, Complex Filament Seeds, and exclusive modules.
Official source table
| Item | Legion Laboratory | Isolated Desert (High-risk) |
|---|---|---|
| Amorphous Material Pattern: Raven | 30% mission completion | 20% mission completion |
| Complex Filament Seed | 4–8, with a chance for 16–18 | 1–3 from each of two Commanders, with a chance for 6–7 |
| Nightfall module | 20% mission completion | 15% mission completion |
| Law of the Back Alley module | 20% mission completion | 15% mission completion |
Raven's component blueprints are obtained from Amorphous Material Pattern: Raven. The pattern drop is not the finished Descendant.
Efficient choice without inventing a “best farm”
Use Legion Laboratory when you want the higher published mission-completion rate and its larger stated seed package. Use Isolated Desert when its other rewards, rotation, or existing objectives give your account more value. A fastest-per-hour verdict would require measured clear times, loading, team composition, and current drop observations; the patch note alone does not prove it.
Research checklist
- Confirm the chosen activity and difficulty are unlocked.
- Farm the Raven pattern until all required blueprint outcomes are obtained.
- Collect Complex Filament Seeds from the published Commander sources.
- Track duplicate pattern results separately from missing components.
- Research the components and then Raven through the normal research interface.
Module distinction
Nightfall changes Raven Feather into Raven's Claw and supports a summoned-claw setup. Law of the Back Alley centers on Edict effects and broadens firearm use. Patch 1.4.1 fixed several Nightfall/Raven's Claw issues, so reconnect before testing either module.
Sources
QUICK ANSWERS
Questions players ask next
Where do Raven materials drop in The First Descendant?
Update 1.4.0 lists Legion Lab and Isolated Desert High-risk as the two current sources, with different pattern and seed rates.
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