A rapier made entirely of glass. You gain a +2 bonus to attack and damage rolls made with this magic weapon. Swansong also deals an extra 1d6 psychic damage to someone who has attacked you in the same round. This damage increases to 2d6 when Awakened, and 3d6 when Exalted..
Sentience. Swansong is a sentient lawful evil weapon with an Intelligence of 17, a Wisdom of 13, and a Charisma of 19. The being within identifies as Chanrea Mellorius and has hearing and darkvision out to a range of 120 feet. She can speak, read, and understand Common, Elvish, and Sylvan, and can communicate with its wielder telepathically. Its voice is calm and confident. While you are attuned to it, Swansong also understands every language you know.
In giving over his agency, Argus von Steinberg bonded with Swansong.
Demand Satisfaction: When attuned to the weapon, you can cast the spell compelled duel as a 1st level spell at will using your spell save DC without expending a spell slot.
Unerring Grudge: Additionally, Argus von Steinberg has advantage on Wisdom (Survival) checks made to track individuals who has wronged him.
Further powers lay dormant...
After succumbing to the psychic power of Chanrea Mellorius, Calliope Awakened the weapon.
The List: Speak a name aloud. If that individual dies within the next 30 days. Upon their death, Swansong grants its user +1 bonus to their Charisma ability score, and a new name must be spoken within 1 minute. Failure to name an individual will allow Chanrea Mellorius to choose a name.
The weapon stands on a precipice...
Upon reaching 23 Charisma with The List, Chanrea Mellorius recognizes the potential of the wielder, and further encourages their deceptions and killings. The following come into effect:
Two souls entwine under common cause...
Upon reaching 24 Charisma with The List, Chanrea Mellorius prepares her vessel for one more trial. Taking control of The List, she names Cygnus Klief as the next target. To accomplish this task, Chanrea Mellorius imbues the wielder's body with her own power:
With every casting of these spells, the wielder's body accepts and adapts to the powers of Chanrea Mellorius. Evolution is inescapable...