Several years ago, now, one of the other GMs in my gaming group wanted to run a Pathfinder game. I was kind of bored with the standard classes and in a mood for designing, at the time, so I asked if I could homebrew a class. My group was pretty used to my half-baked designs by then, so he allowed it. I was also binging reruns of Airbender with my daughter, and everyone knows Toph is the best. So I had a go at adapting earth bending to the d20 oeuvre.
Honestly, it’s not a great fit. The flashy nature of bending would probably work better in a PbtA game, but you work with what you have. Based off the monk core class, I did my best to approach the proper flavor of earth bending while adhering to the somewhat rigid class structure. It’s probably unbalanced as hell, especially at the higher levels. We never finished the campaign, and didn’t spend enough time at each level for a really good test. But, it mostly worked. Here is a pdf of the most recent (ca. 2015) edit. I hope you enjoy it.