Look, since Yuta's arrival caused the concept of cursed energy appear in Terra, so naturally, there will be cursed spirits and maybe, even Terra's sorcerers (Alike to Gojo's birth).
While we do got a lot of ideas for some technique or something else completely, not all of us are very creative.
If you have a technique or something different from things like binding vow or domain, leave a comment and we'll see if it can fit.
Yuta's technique is Copy so this will add more than just limitless, shrine,... You know what i mean.