Forge Polymer

Forge Polymer is an item sold by Ada-1 that gives a chance at Black Armory armor. It was introduced in the Black Armory era and costs six Black Armory Schematics and ten Legendary Shards.

Use it at a forge just before starting a forge ignition. It applies a Polymerized buff, and when you forge a Black Armory weapon while the buff is active, an armor piece drops alongside the weapon. The buff ends after your next successful forge, when the armor is received.

Acquisition

Forge Polymer is purchased from Ada-1 for Black Armory Schematics and Legendary Shards. Current availability has not been confirmed for later seasons, so check the vendor before planning around it.