Avatar characters in a stylized battle scene HD Wallpaper

Four stylized figures are depicted in a line on a dark surface against a textured dark blue background. The leftmost figure, possibly Aang, is throwing rocks. The next figure, possibly Roku, is creating a sun-like energy blast. The third figure, possibly Kyoshi, is firing a rifle. The rightmost figure, possibly Korra, is holding a glowing orb and firing a beam.