DISCONTINUED BECAUSE IT DOESN'T WORK ANYMORE IF IT WORKS FOR YOU THEN GOOD FOR YOU BUT I WILL NO LONGER BE UPDATING IT (6 of march 2024)
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My personal take on how piglin bartering could be improved; now they sell you more Nether items like fungal stems and ghast tears while also giving you rare treasure like Snout trims and upgrade templates.


Hazel Earthstar's Better Piglin Trades 1.3 Changelog:


Added Fire Aspect books in trades
Replaced Gilded Blackstone with Blackstone Bricks
Replaced Ancient Debris with chains
Actually removed gold

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I took some inspiration from preexisting datapacks such as https://www.planetminecraft.com/data-pack/improved-piglin-bartering/ and https://www.planetminecraft.com/data-pack/others-piglin-barter/ .
I will try my best to keep it updated so criticism/suggestions are welcome.