While attuned to this weapon your soul is bound to it. While your soul is bound to it you cant unattune from it. (major curse - lesser restoration or remove curse cant break this curse).
The sword will feed on the souls of the people you kill. This will only happen if you got the killing blow with this sword. It has a never ending hunger for souls and being attuned to it will have some side effects like being gluttonies. (DMs discretion)
Proficiency with a Rapier allows you to add your proficiency bonus to the attack roll for any attack you make with it.
This weapon has the following mastery property. To use this property, you must have a feature that lets you use it.
Vex. If you hit a creature with this weapon and deal damage to the creature, you have Advantage on your next attack roll against that creature before the end of your next turn.
Notes: It has 3 charges and you can use 1 charge to cast true strike as a bonus action., Cursed, Finesse, Vex
I would love some feed back on this. Is it to powerful for a lvl 2 character?