Kuuga,Legend of Asami

"Earth. Fire. Air. Water. Those are the elements of the benders, and only the Avatar can bend all four, such as my Father and now Korra,keeping all 4 nations in balance. But then monsters called the Gurongi were revived and began their killing game called Gegal. Only the Masked Warrior,Kuuga ca defeat them. And that warrior is Asami Sato."-Tenzin