You gain a +3 bonus to attack and damage rolls made with this sword. Hit points lost to this weapon's damage can be regained only through a short or long rest, rather than by regeneration, magic, or any other means.
You're unwilling to part with this weapon while attuned to it. While attuned to this weapon, you also have disadvantage on attack rolls made with weapons other than this one.
The vengeful spirit possessing the sword shares its history and lust for vengeance with the wielder. After each successful long rest, you experience nightmares of the spirit's past, culminating in its death. When you wake, you must make a DC 11 Constitution saving throw. On a failed save, you only gain the benefits of a short rest. Only the Remove Curse spell allows you to end attunement to this item.
This item corrupts. See the "Infernal Item Corruption" section.
You have Disadvantage on attack rolls with a Heavy weapon if it's a Melee weapon and your Strength score isn't at least 13 or if it's a Ranged weapon and your Dexterity score isn't at least 13.
A Two-Handed weapon requires two hands when you attack with it.
If your attack roll with this weapon misses a creature, you can deal damage to that creature equal to the ability modifier you used to make the attack roll. This damage is the same type dealt by the weapon, and the damage can be increased only by increasing the ability modifier.