History of Hollow Words

Overview

Arc Fusion Rifle (Energy slot) with a Precision Frame and 780 charge time. PvE god roll per guides: Arrowhead Brake, Enhanced Battery, Feeding Frenzy, Vorpal Weapon; PvP: Hammer-Forged Rifling, Accelerated Coils, Killing Wind, Backup Plan.

Acquisition

Seasonal weapon of Episode: Heresy. It can drop from the The Nether activity and from Court of Blades, and can be focused at the Tome of Want using Scriptures. Sources disagree on exact drop sources (one guide lists it as a Xûr offering, another as a Nether/Court of Blades and Tome of Want drop), so check in game. It is not craftable (Weapon crafting).

Per TheGamer, all seasonal Heresy weapons are non-craftable and obtainable via The Nether and the Tome of Want.