Reggie Star's Cursed Technique is called Contractual Re-Creation (it didn't fit in the description so I am writing it here).By burning a contact such as a receipt with cursed energy, Reggie can re-create whatever was written on it into existence. This is not limited to physical objects, as the effects of services like spa treatments can be instantly re-created as well. Re-created items can be given commands like shikigamis*

A Jujutsu sorcerer is nothing but a con artist, don't you think?