Assassin's Stance

3rd-level / Shadow Hand

As your foe struggles to regain his defensive posture, you line up an exacting strike that hits with superior accuracy and deadly force.   A shadow cast by a gap between two armored plates or a crease in a creature’s thick hide calls to your weapon, allowing you to strike with deadly accuracy against an unprepared opponent. While you are in this stance, you gain the sneak attack class feature, if you do not already have it, which deals an extra 2d6 damage. If you already have the sneak attack class feature, your existing sneak attack feature deals an extra 1d6 damage.   (Sneak attack is described on page 96 of the PHB)