This commands add nine new enchantments :
Internal blaze, Swiftness, Poison, Leaping, Celestial strike, Magic
immunity, Frostburn, Windbreaking and Blood thirst.
Part 1/2 : https://minecraftcommand.science/commands/46302
Version 1.11 : https://minecraftcommand.science/commands/46306
Showcase : (link here soon once again)
Loot table : http://www.mediafire.com/file/ddquww9wgwaobqd/custommobs.zip
You will need to access your save file (World menu - edit world - open folder), then go to data, create a folder named loot_tables, go inside, create a folder named enchantments, go inside, create a folder named chests, go inside and paste the downloaded file.