I found a way for people to bend all 4 elements at once, all you have to do is ./b add (nameoftheelement).
I think it's something that comes with JedCore.
Maybe you could add that permission for Avatars or maybe even the element masters.
Thank you for your consideration.
Hey PhanaticD, I don't know if you saw this previously but....
I'm an avatar on your server and I was scrolling through the custom abilities and found an ability call GeyserRush (for water). I added it to my server and i saw that it was pretty good. Maybe you could add it? Thank you