Shadow Walker

A fighter with abilities to sneak around and pick locks. While still relying primarily on core fighter abilities this subclass seeks to augment the fighter to be more roguish in how they fight—using part of your attack action to disengage and roll out of trouble. 

Roguish movement

At 3rd level, You now have the ability to dash, hide and disengage as a bonus action 

Stealthy Approach

At 3rd level, You now have proficiency and expertise in stealth. 

Thieving hands

At 3rd level, You gain proficiency with thieves' tools.  

Into the Shadow

At 7th level, Whenever you hit an enemy with an attack that enemy can not take an opportunity attack on you until the end of your turn. 

Surprise Attack

At 7th level, If you are hidden or an enemy is surprised when you hit that enemy using the attack action, you can do an extra 4d6 damage once per turn. 

Death in the darkness

At 10th level, You are considered invisible if you are not currently moving and are in darkness. (If a character is in active combat they must not move on their turn)

Hidden in a flash

At 15th Level, when you roll initiative you an move up to half your speed and attempt to hide.

Improved Surprise Attack

At 18th level, Your Suprise attack damage goes from 4d6 to 8d6.