How to Add Custom Item Drops Using Main Hand Commands
Finding Mob Names and Preparing Items
You can assign any item to a mob's drop table simply by holding it. The mod supports items with special NBT tags, meaning you can hold pre-enchanted gear, enchanted books, or written books to have those exact items drop.
Before adding a drop, check the names of all entities supported by the mod. Run the following command:
/cemd list
This prints a list of all valid entity names, including standard vanilla mobs and entities added by other mods.
Registering the Held Item as a Drop
Once you know the entity name and have the intended item in your main hand, enter:
/cemd addhand <entity-name>
Replace <entity-name> with the name shown in the entity list. When entered with no additional parameters, this command assigns your held item to that mob with a 100% drop chance whenever the entity dies.
If you need a quick reminder of available command formats while playing, type /cemd usage in the chat to view the command syntax guide.