Light Weapon Master

Through rigorous training and countless hours of practice, you have honed your abilities to wield these agile weapons with unparalleled precision and finesse.

This feat can only be applied as long as all the weapons equipped have the finesse property.

Upon taking this feat, you gain proficiency in all finesse and light weapons. This includes weapons such as daggers, shortswords, rapiers, scimitars, and any other weapon that is classified as both finesse and light.

Additionally, when wielding two finesse melee weapons at the same time (one in each hand), you can use a bonus action to make an additional attack with one of those weapons. 

Before you make a melee attack with a finesse weapon that you are proficient with, you can choose to take a -5 penalty to the attack roll. If the attack hits, you add +10 to the attack's damage.