After raising a wall, an earth bender could smack blocks in the opposite direction. I remember Witchery had a somewhat similar ability with one of it's infusions. Possibly requiring an empty hand.

So kind of like kicking off part of the wall at the enemy?

Pretty much, yeah. I thought I remembered seeing it in the series, and sure enough.

https://youtu.be/CmEo-U9gAn4

Around the 1:12 mark. I think I've seen Toph to something similar too.

Yeah. She does a similar technique towards the end of this video.

https://youtu.be/xtBbtAAEdhY

Yeah definitely is a good idea. I'll see if I can implement this.

Cool.

This is done as part of a path.