Belt of the Hell Hound

Alter: When you wear this belt, you can feel the fires of the lower planes burn inside you. While wearing the belt, when you make a melee attack against a creature and have advantage on the attack, the target takes an extra 1d6 fire damage from the attack on a hit.

In addition, while wearing this belt, you can use an action to release a hellish howl. When you do, you exhale a plume of flames from your mouth in a 15 foot cone. Each creature in the area must succeed on a DC 17 Dexterity saving throw, taking 6d6 fire damage on a failed save, or half as much on a successful one. The fire ignites flammable objects in the area that aren't being worn or carried. Additionally, each hostile creature that can hear you within 20 feet of you must make a DC 15 Wisdom saving throw, or be frightened of you for 1 minute. This saving throw can be repeated at the end of each turn until succeeded or the duration is expended. Once this property has been used, it can't be used again until the next dawn.

Attunement: Yes, cursed
Cursed: Once you wear this belt, you can't remove it unless you are targeted by the remove curse spell or similar magic. While wearing the belt, you must eat twice the normal amount of food each day (a minimum of 2 pounds) to avoid exhaustion. In addition, while wearing the belt, there is a cumulative 10% chance when you die and again at the end of each hour you remain dead that you immediately immolate, transforming the corpse into a hellhound that is recalled to the lower planes.
Rarity: Rare
Type: Belt
Cost: 2475gp

Griffons Saddlebag, Vol 2

potentially add a bite attack