This subclass is designed to let you send Astarion sneaking ahead as a scout. Keep his Dexterity as high as possible and give him a solid shortbow, and he can easily Stealth his way into position and surprise an enemy. You get to deal some decent damage before combat has begun. Then, ...
There is literally a rogue subclass in 5e called "Swashbuckler." If you are going to come to this forum and continuously bash the system this game is based on, could you at least do your homework first? "To the best of my knowledge - there is not. They simplified everything, leaving ...