The enchantment book is from a mod called Dragon Enchants,

Here is my scipt

[
{
"mob": ["minecraft:pig","minecraft:cow"],
"player": true,
"item": "minecraft:enchanted_book",
"nbt": {
"ench": [
{
"lvl": 3,
"id": 114
}
]
}
}
]

it doesn't seem to work in anvils and with the Enchantment Descriptions mod installed they don't seem to show the descriptions either. I don't know if I'm doing something wrong or if it's bugged, please help ahahah

hmm sorry. No clue either. 1.12.2 is too old for me to be honest

It's ok dw it's rlly confused me too and I didn't end up figuring out how to do it but putting enchantments onto tools works still though which is honestly still rlly good and I've also tested getting the same enchantments off of tools with the Disenchanter mod and then putting it onto a minecraft book, and it all works really well the book shows as normal with it's descriptions and everything and can be added to another tool from there with an avil which I did test too and that also works good.

I think I saw that the Disenchanter mod comes with a cheap good recipe too but if someone wanted that even easier to get I guess they could try using the CraftTweaker mod to edit it's recipe, and I haven't tried the "message" feature yet in this mod but I'm guessing that could probably be used to remind players that the disenchanter mod is installed and help get the modded enchantments off of tools.

Anyway you can close this now if you want yep everything seems pretty good tyty very much

I'm assuming this is 1.12 because that's old enchantment notation. I can't really help with that as that's a vanilla problem. You need to figure out the correct NBT for such a book. Maybe the Minecraft wiki has that information although not sure if it still shows info for such an old version

Hi sorry yes I forgot to add that this is in modded minecraft 1.12.2 and to do with the loot.json config file

I've also installed your Fx Control mod and dumped the NBT data while holding a bunch of enchantment books in my hand and this what showed in the chat

I don't really know what to do from here though D:

I'm assuming this is 1.12 because that's old enchantment notation. I can't really help with that as that's a vanilla problem. You need to figure out the correct NBT for such a book. Maybe the Minecraft wiki has that information although not sure if it still shows info for such an old version

Sooo I ended up researching some stuff again and AHEM umm ahahah I'm new to this so nobody laugh at me pls but umm all I had to do was change the "ench" thing in the script to "StoredEnchantments" now everything is working fine

I thought I'd come back and put this here in case it could help anyone in the future

Working example script is:
[
{
"mob": ["minecraft:pig","minecraft:cow", "minecraft:sheep"],
"player": true,
"item": "minecraft:enchanted_book",
"nbt": {
"StoredEnchantments": [
{
"lvl": 3,
"id": 54
}
]
}
}
]