Custom potions were also going to be asked about here but BEHOLD MCREATOR DID IT AGAIN, however, on a similar note, what about custom enchantments, they could work just like potions where it uses the procedure system!
Well I didn't mean to confirm this yet but what I was going to add was that you could choose the rarity of getting this enchant from the table, how many levels it could go up, max at 10, and have a different procedure for each level, the minimum cost for it to appear in the table, and what equipment it could be added to... Seems like a lot of work, but I think it would be totally worth it...
Edit AGAIN, but you should also be able to choose which enchantments that aren't compatible with one another or the original enchantments
Well I didn't mean to confirm this yet but what I was going to add was that you could choose the rarity of getting this enchant from the table, how many levels it could go up, max at 10, and have a different procedure for each level, the minimum cost for it to appear in the table, and what equipment it could be added to... Seems like a lot of work, but I think it would be totally worth it...