Would be a fun way to balance the Matrix Enchanting Table if there was, say, a 5% chance you'd get a curse on your item upon enchanting it

Maybe further there could be a curse breaking mechanic involving an anvil and an underused material item like prismarine, with a configurable break chance

EDIT: further reasoning, curses are super underused, but fun. Many mods add interesting curses, including some "give and take" type effects, but you rarely see them.