+2 sentient great sword plus 2d6 necrotic damage while attuned. Plus spell abilities. 5e magic item from Hoard of the Dragon Queen.
A sentient (NE) +1 or +2 greatsword which also deals necrotic damage and allows you to cast select spells.
While you are attuned to this weapon, its bonus on attack rolls and damage rolls is +2, and a hit deals an extra 2d6 necrotic damage.
Spells: Hazirawn has 4 charges to cast spells. As long as the sword is attuned to you and you are holding it in your hand, you can cast detect magic (1 charge), detect evil and good (1 charge), or detect thoughts (2 charges). Each night at midnight, Hazirawn regains 1d4 expended charges.
Wounding: While you are attuned to the weapon, any creature that you hit with Hazirawn can't regain hit points for 1 minute. The target can make a DC 15 Constitution saving throw at the end of each of its turns, ending this effect early on a success.While Unattuned
Even if you aren't attuned to the sword, you gain a +1 bonus on attack rolls and damage rolls made with this weapon. Plus you deal an extra 1d6 necrotic damage when you hit with the weapon.
Hazirawn is capable of speech in Common and Netherese and is found in Hoard of the Dragon Queen.