Ardor

The blades of this axe smolder with an inner light. The dark wooden handle is accented with silver. When the celestial realm turned back yet another assault from the forces of evil, a fiendish forge master received a vision, allowing them to craft a battleaxe like no other. With the might of Ardor, the fiends now possess a weapon capable of striking down the celestial forces. Ardor now lies in the fiendish realm's hidden vaults, waiting to be wielded when the forces of darkness make their ultimate strike to consume the world. The fiends don't realize that an equally powerful weapon rests in the hands of the celestials who wage eternal war against them. The fates who inspired the forge master to craft Ardor also sent a vision to a smith of heaven in the interest of maintaining the balance of power.

Axe of Hell. This magic battleaxe grants a +3 bonus to attack and damage rolls made with it. When you hit with an attack using it, the target takes an extra 3d10 necrotic damage.

Champion of Evil. While holding the battleaxe, you are immune to the charmed, frightened, paralyzed, poisoned, and stunned conditions.

Ardor's Pursuit. As a bonus action, you can release Ardor to hover magically in an unoccupied space within 5 feet of you. If you can see the battleaxe, you can mentally command it as a bonus action to fly up to 50 feet and either make one attack against a target or return to your hands. If any effect targets the hovering axe, you are considered to be holding it. The hovering axe falls if the attuned user dies.

Spells. While the axe is on your person, you can use an action to cast one of the following spells (save DC 18): bane, banishment, bestow curse, branding smite, or incendiary cloud. Once you use the axe to cast a spell, that spell can't be cast again from it until the next dawn.

Destroying the Axe. The only thing capable of damaging the battleaxe is its celestial twin Zeal. A creature wielding Zeal can choose to attack Ardor, which has an AC of 21 and 300 HP. No other creature or object can damage Ardor.

Versatile: This weapon can be used with one or two hands. A damage value in parentheses appears with the property—the damage when the weapon is used with two hands to make a melee attack.

Proficiency: martial, battleaxe Source: Grim Hollow: Player's Guide p. 134 (Third Party), Player's Handbook p. 149