Draa velve

You are trained in the drow fighting style of Draa Velve, a master of wielding two swords simultaneously for offense and defense.

Increase your dexterity by 1

You can treat all melee light weapons you have mastery in as having the Nick property. Any weapon that already has the Nick property gains the vex property.

If you are dual wielding light melee weapons and are targeted by a melee attack you can use a reaction to increase your AC by your proficiency bonus against a number of attacks equal to half your dexterity modifier rounded up.