Improved Shadow Step

You amalgamate yourself in the world of shadow. As a bonus action you can teleport up to 60 feet to an unoccupied space you can see. After taking damage, you can use your reaction to teleport up to 60 feet to an unoccupied space you can see. Both the space you teleport from and the space you teleport to must be in dim light or darkness. You then have advantage on the first melee attack you make before the end of the turn. You can also use this ability between the weapon attacks of another action you take.