Who is the strongest character in Jujutsu Kaisen until now?
Sakuna is considered the most powerful Jujutsu Mage of a millennium past. Although perceived as a legend, he was truly a Magician who later gained the title of Infamy. Sukuna defeated all Jujutsu Wizards of old, remaining unbeatable even when they united against him. He channeled through Cursed Objects and ultimately possessed Yuji Itadori's body, later transferring to Megumi Fushiguro.
Sukuna is known for possessing unique powers, showcasing incredible Innate Abilities that fans have yet to fully uncover. He also possesses a powerful Domain Expansion, called Malevolent Shrine, however, his Domain is weaker than Satoru's Limitless. He is also strong enough to use Barrier techniques and Reverse Curse Techniques to heal. Furthermore, it is also implied that he can copy techniques just by seeing them once, and he did so after learning to separate himself. After observing Satoru, it is believed that he can even restore his burned Cursed Energy using the Reverse Curse Technique. Sukuna can engage in combat with Satoru Gojo and cause significant harm. The comparison of their strength remains ambiguous. Yet, Sukuna exudes a higher level of confidence in defeating him.