Longsword of Demons

Said to have been forged for the servants of the strongest demons, it mimics their own swords.
Item type
Weapon, Melee

Longsword of Demons

Weapon

Rare Requires Attunement

While attuned to this longsword you have resistance to poison. You can use your bonus action to summon a fiery aura. Each creature within 5 feet of it takes 10 (3d6) fire damage, and flammable objects in the aura that aren’t being worn or carried ignite. Until the start of your next turn, if a creature touches you or hits it with a melee attack, within 5 feet of it takes 10 (3d6) fire damage. Once you use this feature you can not use it again until you complete a long rest.   You have a +1 bonus to attack and damage rolls made with this magic weapon.   Proficiency with a longsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.

This black blade seems to have reddish-orange ore that seems to move throughout the blade.

Type Damage Damage Range
Martial Melee 1d8 / 1d10 Slashing

Cost: 6000 gp