This video explains how to add 8 new enchantments in vanilla MC (1.12) with only 3 command blocks or one function.
You can download the function at the bottom of the page, or you can use the three commands below :
1 : https://pastebin.com/raw/EefyNd9C
2 : https://pastebin.com/raw/CDQK0EhG
3 : https://pastebin.com/raw/xe3h55Af
How to use a function : https://youtu.be/G3rqieSn3Fc (Video made by Jragon)
Twitter : https://twitter.com/Night__Fang
Google+ : https://plus.google.com/u/0/109109100798780125834
Music :
Far Out - Chains (feat. Alina Renae) [https://youtu.be/_RdMzr-xdmA]
Unknown Brain - Perseus (feat. Chris Linton) [https://youtu.be/vAMexKKYaG8]
⇓ Download the function ⇓