Old combat datapack works in 1.17.-1.18.2

Here is the download link and make sure to sub to the original creator aight here https://www.planetminecraft.com/data-...
Been want ting to add the old combat in my world and i found it i also found a client side mod that brings back sword blocking though it looks like it to other player you look like your holding a sheild. And it only works if your holding a sheild though