How do you get more bending moves on avatar legends of the arena

yes you can, but it is really hard to and almost imposible to,,, what you have to do is get to level 50, then win online play 25 times in a row and upgrade all of your avatar people, but,,,,, you have to do that ALL in less then 24 hours. JUST TO GET 1 NEW BENDING MOVE!!!!!! p.s to play as avatar roku,,, im not shur but to get him you shuld go to codes and tipe in ''spirit world''.