You have a +1 bonus to attack and damage rolls made with these magic weapons. These weapons also deal 2d4 Necrotic damage if both hit, only 1d4 necortic if only one hits.(1d4 per blade)
Proficiency with a Shortsword 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: Bonus: Magic, Damage: Necrotic, Make sure that when the PC receives this magic item that there are two blades. This is VERY important, Damage, Combat, Finesse, Light, Vex
only issue i have is it auto rolls 2d4 on roll20 and cannot make it roll 1d4 instead otherwise great weapons