As a result of his immature ability to use cursed energy and his superhuman strength, Yuji created his Divergent Fist ability, which is essentially a punch infused with cursed energy; however, due to Yuji's superhuman speed, the cursed energy lags behind the punch, creating a double impact from the attack.

How powerful is Yuji?

8 Yuji Itadori

He is naturally strong, agile, and fast, as seen by his ability to fight a high-level Curse in the first episode, despite not having any cursed energy at the time. ... Black Flash is 2.5 times more powerful than a normal hit and capable of damaging even innately powerful special grade curses, like Hanami.

How strong is Yuji Jujutsu Kaisen?

The phenomenon causes cursed power to flash black, creating a more potent attack to the power of 2.5 of a normal hit. Currently, Yuji is capable of using Black Flash four times in a row and has performed it a total of nine times.