Black Flash

You have been blessed by the black sparks, Boosting the power of your Critical hits and allowing you to enter the zone after scoring a crit. 

• Whenever you score a critical hit with a melee attack, you can add an additional number of weapon or unarmed strike damage die equal to your proficiency bonus.
• Immediately after scoring a critical hit, you gain the benefits of a short rest aside from recovering hit points. Additionally, for 1 minute after scoring a critical hit your critical hit ratio goes down by one. this effect ends early if you are rendered unconscious or die.