Edit Mob Drops
Edit Mob Drops is an easily configurable mod that lets you edit what mobs drop, including adding items to specific groups of mobs, adding additional items, and even clearing existing drops!
All vanilla and modded items are supported, including NBT data. All mobs should be supported, and a future update will fix multiple mobs with the same class name conflicting.
Editing mob drops is as simple as editing the config file of the mod, config\editmobdrops\editmobdrops.cfg (in 1.7.10 and 1.12.2), or config\editmobdrops\editmobdrops.toml (in 1.14+).
Old Sample Config (Before mod version 1.4.0)
Sample config for 1.7.10 and 1.12.2
For 1.14+
Both of these configs do the same thing for different versions of Minecraft.
This config adds a chance to drop a stack of minecraft:diamond_sword, with between 1 and 1 (so 1) swords, with metadata 0 (an ordinary diamond sword), using the file "sword.json" for NBT, to everything, with a 100% chance.
"sword.json" contains the following:
{"display": {"Name": "A sword"}}
This NBT data gives the sword the name "A sword".
The .json files can contain any valid NBT in json format. Check the syntax with a /give command if you're not sure whether it'll work.
After the sword, this config adds a chance to drop a stack of minecraft:diamond, with 1 diamond of metadata 0, not using an NBT file (as that section is blank).
The diamond has a 0% chance for anything to drop it, a 0% chance for monsters, a 0% chance for bosses, and a 100% chance for group 1, defined lower in the config as Creepers and Witches.
Lower down in the config, skeletons are listed as being a "Mob to Clear". This means default drops are cleared, but this happens before the extra items are added, so skeletons will still drop a diamond sword called "A sword".
Finally, the "Single Mob Items" section adds items to a single type of mob - in this case, adding a diamond pickaxe (metadata 0, no NBT) to chickens with a 100% chance to drop, and the same for a diamond axe.
After 1.12.2, metadata was removed entirely, so the 1.15+ version of the config file does not include it.
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