A faint echo of an ancient tongue whispers in your thoughts, urging vengeance against those who have wronged you. You sense a surge of dark power, tempting you with strength. However, be aware that this path leads only to deeper darkness; the more you yield to it, the more of yourself you will lose.
A dark binding the offers its bearer dark power, but the untrained have the chance of negative effects. Bearer can do in addition to weapon damage, 1D8 necrotic damage but will have to roll a D6 after 4th use.