There is no other sorcerer in Jujutsu Kaisen with this ability to create barriers, hence why Kenjaku wanted to get them during the Culling Games to complete his plan. Ad. 2) ...

In the past, Jujutsu Kaisen confirmed there are only four Special Grade sorcerers registered in this day and age.The Zenin clan has several Special Grade 1 users in its rank. But when it comes to ...

As of Chapter 203 of Jujutsu Kaisen, there have only been four Special Grade sorcerers officially revealed. These include the currently sealed in the Prison Realm Satoru Gojo, the Kenjaku ...