Demonic Weapon +4

Though no visual trait betrays its nature, this weapon of unassuming materials is frighteningly warm to your skin. As you touch it, for a moment, you feel like your hand is submerged in fresh blood. The sensation passes, but you cannot help but long to feel it again. Sadly, the release of demons onto Crisillyiri soil also spread many of these weapons throughout the nation.

You have a bonus to attack and damage rolls made with this magic weapon. The bonus is determined by the weapon’s rarity.

As an action, you can touch the demonic weapon to another weapon, and as long as the other weapon remains on your person (or in an extradimensional space on your person), the demonic weapon is transmuted to match the shape and mundane qualities of the other weapon.

Curse. This weapon is cursed. If nobody else is cursed by it, and your hand (gloved or otherwise) ever touches the weapon while it is in a shape you are proficient in, you become cursed by it. All damage inflicted onto the weapon is instead redirected to you. Once before the next dawn, you must personally kill a humanoid and smear the weapon with its blood or equivalent substance. If you fail to do so, you suffer a cumulative –1 penalty to Intelligence, Wisdom, and Charisma ability checks for each unfulfilled dawn, as the weapon whispers into your mind and castigates you. The penalty resets if you finally feed it. If this penalty equals or exceeds your Wisdom score, you are driven mad and kill yourself with the weapon.

The curse can be removed by the remove curse spell or similar magic, so long as the weapon is used to kill a goat submerged in holy water during the casting.