Oathbreaker

The Oathbreaker is a weapon in the Fallout 76 update Steel Dawn.

Characteristics
The war glaive consists of a long, dark metallic shaft with light brown accents. By default, it is topped with a broad, double-sided sword-like blade. The edges of the blade are serrated, the central ridge is flattened, and two capacitor-like objects protrude from the base of the blade.

The war glaive can be equipped with multiple elemental heads, with each having a unique appearance. The shocking head consists of dual concave crescent blades attached to a central wave-bladed spike, with electrical arcs between the blade tips. The flaming head has a thick curved blade with a rear spike and a fuel tank to create flames along the blade. The cryo head has a wide, semi-circular, spade-like blade covered in frost. The plasma head consists of a large, thick contraption and metallic enclosure that creates a single-sided beam of plasma acting as the blade.

All of the mods for the war glaive cut the damage as seen in the Pip-Boy in half while adding the full base damage of the war glaive as a secondary damage type (cryo, energy, etc). The secondary damage type will be buffed by global damage boosts such as Bloody Mess or Adrenal Reaction, but will not be impacted by weapon type-specific buffs such as the melee-enhancing Twisted Muscles. This is due to the secondary damage type not being associated to any specific weapon types. The primary damage will continue to be enhanced by weapon type-specific buffs.

For example, the Pip-Boy displays 82 Physical damage for the standard level 50 war glaive. If one adds the cryo blade mod, the war glaive now has 41 Physical damage and 82 Cryo damage. Both specific and global buffs and nerfs will be applied to the primary Physical damage of the glaive, while only global buffs and de-buffs will be applied to the secondary damage of the glaive.

Similar in damage to the super sledge, the war glaive is a heavy-hitting two-handed weapon, though bladed instead of blunt. War glaives cannot be traded, dropped, or sold to vendors, and neither can the plans for the war glaive and its mods. Legendary war glaives can be scrapped at a legendary exchange machine.

Weapon modifications

 * War glaive

Locations

 * Reward for completing Steel Dawn quest Over and Out.
 * Plans for the mods can be bought from Regs for gold bullion.