Kensei Tortle Monk and take Mobile at 4th. Hit and run. Speed will eventually let you hit and move so far away that it takes creatures their Move and Action to catch you. When you are out of range you use your Bow to shoot from range before moving back into Melee combat. Yes, there are trade offs but WotC gives so many options that can be explored to make for 'fun' characters. I have all four tortles spec'd up for a game I plan on running along with Casey and April. I borrowed advice from Reddit. They are not damage optimized characters. They are made to be run to play.
