Here's a suggestion for a new rule: If somebody of a certain element wants to learn a certain element ability (like water whip or earth throw), they learn it from the kings of that element nation. And only then they can use it.

.....i approve this rule

sweetish

oh so i hav to lear stuff from zaine? wait arent i a master of earth to? do i still hav to learn stuff?

ur are no master

(ask zaine)