War of Avernus

You infuse the components for this spell with fire from avernus, you strike the magic stone against your blade and it sets on fire. You get filled with the rage and anger of the blood war and automatically get a +3 on the attack (proficiency included), it also can add dexterity, charisma, or wisdom instead of strength. The attack is considered magical, the target must make a DEX save or take 8d10 fire damage and 1d4 piercing damage per turn due to blood loss, the effects wear off after a minute.