Feurygungir

Weapon (Halberd), Legendary (Requires Attunement)

This strange halberd has two heads made of wild magic Tarrasque scales, facing the same way, with a small opening between them at the base of the weapon, from which fire scorches out.

You gain a +2 to attack and damage rolls made with this magic weapon. Additionally it deals an extra 1d6 fire damage on a hit. If you make a critical hit on an attack roll against a creature with this weapon, they must roll wild magic, as if they were the target, and you were the caster.

You may also choose to expunge flames from the opening at the center of the halberd. Once per day, you may use an action to activate the flames. The Halberd exhales fire in a 30-foot cone. Each creature in that area must make a DC 18 Dexterity saving throw throw, taking 42 (12d6) fire damage on a failed save, or half as much damage on a successful one. Once you use this property, the Halberd does not deal the additional 1d6 fire damage on a hit for one minute

Requires Wild Magic Tarrasque Scale (x2), Young Fire Dragon Lungs (x1) Costs: 24000 GP