Since there has been an increase in number of item duel scams, perhaps implement a command that is similar to the /duel <amount> command but instead of tc have it be an item from your inventory, could be similar to the item trading on steam where you would have to select items and click a "ready to duel" button. It would probably take much time to code/make, but it could decrease the amount of item dueling scams?

But you'd might want to fix the duel command first anyway.

That would be great, but they should make sure it would be something like safetrade. Where the person has to aggree to duel for the item.