Yuji Itadori, the protagonist of Jujutsu Kaisen, doesn't possess a unique innate cursed technique like many other sorcerers. His primary strength lies in his exceptional physical abilities that surpass those of normal humans. He's incredibly strong, fast, and durable, making him a formidable fighter.
However, Yuji's most defining characteristic is his ability to contain Sukuna, the King of Curses, within his body. This grants him access to Sukuna's immense power and abilities, making him a powerful sorcerer despite his lack of a traditional cursed technique.
Yuji's journey involves learning to control Sukuna and develop his own fighting style while leveraging Sukuna's strength. He's also shown to be a quick learner, mastering techniques such as Reverse Cursed Technique and Simple Domain to further enhance his skills.
While Sukuna's presence is a major factor in Yuji's abilities, his inherent potential shouldn't be underestimated. He's incredibly determined and compassionate, willing to put himself in danger to protect others. This courage and resolve, combined with his physical prowess, make him a truly formidable sorcerer.