Is lava bending a Firebending sub element or a Earthbending sub element or both?
In the Context of this picture Avatar Szeto was showing off the power of fire bending (not the power of earth bending even though he was a earthbender) Every other avatar was showing there amazing feat in there personal element, Yangchen was airbending, Kuruk waterbending and Kyoshi was earthing bending. Why show Avatar Szeto doing a supposed earthbending move even tho we saw Kyoshi already do that.