History of Brigand's Law (triumph)

This triumph tracks the Pattern for the Brigand's Law sidearm, a craftable Arc sidearm from Season of Plunder. Completing Deepsight Resonance extractions on the weapon (5 total) unlocks its pattern, letting you craft it.

How to complete

1. Obtain Brigand's Law. Destinypedia lists Ketchcrash and Expeditions as sources.
2. Get red-border Resonant (Deepsight) copies and extract their Pattern progress at the Enclave; each extraction counts toward 5/5.
3. Once the pattern is unlocked, the weapon can be crafted. Leveling a crafted weapon (about 145 kills per level per one guide) is separate.

Sources describe the weapon's acquisition; where it currently drops was not confirmed, so check the in-game vendors.