Bards Lament (Exalted)

This mythical sword has been carried by many great bards throughout history. 

Dormant: While attuned to this weapon your charisma score becomes 22.

You gain +1 to attacks and damage rolls made with this weapon  

Awakened: While attuned to this weapon your charisma score becomes 24. 

You gain +2 to damage and attack rolls with this weapon. 

When you cast Bane it reduces the enemies rolls by a d8 instead of a d4. 

Exalted: While attuned to this weapon your charisma becomes 26. 

When you target an ally with your Bardic Inspiration die you gain advantage on attacks with this weapon for the remainder of your turn. 

When you target an enemy with a debuff ability or spell that enemy has disadvantage on saving throws until the end of your next turn. 

As an action you let the sword guide your body. You make 4 melee attacks at advantage with the sword, each attack that hits counting as a critical. After which you suffer one point of exhaustion. This feature can be used once per long rest. 

Proficiency with a Rapier allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Bonus: Magic, Damage: Piercing, Set: Charisma Score, Bard, Finesse, Vex