Black Flash

Black Flash is a phenomenon of jujutsu where a spatial distortion is born as a result of the application of cursed energy within 0.000001 seconds of a physical hit. The distortion causes cursed energy to flash black, increasing the destructive power of the impact to the power of 2.5. There is no sorcerer who can use it at will, but those who have unleashed Black Flash gain an advanced understanding of cursed energy far beyond those who have not.