You have the ability to fight on par with some of the greatest fighters in the JJK universe. Despite the name, this power is not limited to just Yuji, but instead you are now granted the combined martial prowess, physical and mental skills, and battle IQ of Yuji Itadori, Ryomen Sukuna, Toji Fushiguro, and Satoru Gojo. This means that you can fight like them even if you do not possess any other amplification, and if you were to have any, such as being a Jujutsu Sorcerer, your powers would be amplified even further.
To stay true to JJK fashion, you can’t be respecting 1v1s. But in order for that to happen you have to have battle partners capable of keeping up with you, which this power now provides. Any allies you have that you enter battle alongside, for the duration of the battle, will find their own skills, physical ability, and battle IQ will rise up to match yours in any field they are lacking and yours will rise up to match theirs in any field you fall behind. Most importantly you will find each perfectly coordinated, almost as if you were one person, and will need no communication on battle strategy or passing of information as you are intuitively aware of everything you need to know. You can turn this on and off at will.