Blessed by the Black Sparks

You are intertwined with your bodily function

• When you use the Attack action to send out a melee attack and hit, you may then use a Black Flash which allows you to imbue your strike with magic 0.000001 seconds after a hit lands for extra damage. This is done with a d20 where a 10+ is considered a success. 
• After landing a Black Flash, you gain Advantage on all rolls including Black Flash rolls. 
• When in the Zone, your crit chance is reduced by 1, up to 18, for every Black Flash you land.