Name of the plugin you want: MMOItems
Spigot Link: https://www.spigotmc.org/resources/mmoitems-premium.39267/
Price: 19,99USD
How it would contribute towards the betterment of the community: MMOItems' 6.6.0 dev builds support 1.17 compatibility. Considering how long 1.17 has been out already...
i was on nulledbuilds, and i wanted to get a cool build, so i pressed the upgrade, it sent me here, i bought the highest plan, but i dont have it on nulledbuilds