hexed gust
if player has permission "grass.use":
#Making a custom permission
arctic iris
Sorry my explanation wasn't very good on what I needed. grass.use isn't actually existing rn and I need to create it but I'm not to sure how to create a permission
granite silo
Permissions don't need creating
they are just text
Use whatever permission plugin you have (e.g. LuckPerms) to give it to the player