Lands of Erdos
Weapon (greatsword), artifact (requires attunement by a devil or a warlock of the fiend pact)
Forged for Levistus by Asmodeus himself, Hell’s Sorrow is twin to the Wave of Sorrow; the sword wielded by the Demon Prince Graz’zt, who used to be one of the devils of Baator before he changed sides. It was taken from Levistus when he assassinated Bensozia and was imprisoned beneath the ice of Stygia as punishment. Since then, the sword has served many masters, both fiendish and mortal.
Hell’s Sorrow has two forms: a physical and a spectral. It also has unique ability known as the Devil Trigger. This ability functions differently depending on the wielder. At the hands of a true devil, it allows him to generate a temporary duplicate of himself wielding one of the two forms of the blade. At the hands of a mortal warlock it grants him additional spells slots. At the hands of a mortal warlock with fiendish ancestry, it gives him the ability to transform into a fiend.
Shift Form. You can use a bonus action to shift Hell’s Sorrow from one form to another; Spectral to Physical, or Physical to Spectral. If you are a warlock with the Pact of the Blade boon, you can designate Hell’s Sorrow as your Pact Blade even though it’s an artifact. When you manifest the weapon, you can determine the form it appears in.
Physical Form. You gain a +2 bonus to attack and damage rolls made with this weapon. In addition, whenever you hit with an attack using this weapon, you deal an extra 3d6 cold damage.
Spectral Form. You gain a +3 bonus to attack and damage rolls made with this weapon, which deals necrotic damage instead of slashing damage. Objects and constructs are immune to this damage. In addition, while Hell’s Sorrow is in this form, it also functions as a Rod of the Pact Keeper +3.
Devil Trigger. Regardless of its form, you can use a bonus action to transform into a fiendish aspect of yourself. For 10 minutes, you gain the following benefits:
- Your type changes to fiend (devil).
- Your size increases to Large. Any items and armor you have on your person increase in size as well, including Hell’s Sorrow itself (becoming a Large great sword and thus dealing 4d6 damage instead of 2d6). Your reach with Hell’s Sorrow becomes 10 ft.
- Demonic wings sprout from your back and grant you a flying speed of 60 ft.
- You gain resistance to cold damage as well as bludgeoning, piercing and slashing damage from non-magical weapons that aren’t silvered.
- You gain immunity to fire and poison damage, and immunity to the poisoned condition.
- You gain truesight out to 60 ft.
Devil Trigger ends prematurely if you are rendered unconscious. If you suffer the effects of a banishment effect, you can choose to end Devil Trigger and remain in place instead. Once you use Devil Trigger, you cannot use it again until 9 days have passed.
Means of Destruction. Hell’s Sorrow can be destroyed if struck by a godslayer weapon or if it’s used to attack Asmodeus.