User blog comment:IamJakuhoRaikoben/Chapter 473: Red Lightning, Review./@comment-4489126-20160215210541

@Wiki Editor on the blood controlling thing (on top of Misk's comment): Water... Earth... Lightning... Air. Long ago, the four nations lived together in harmony. Then everything changed when the Fire Nation attacked. Only the Avatar, master of all four elements, could stop them. But when the world needed him most, he vanished. A hundred years passed and my brother and I discovered the new Avatar, a bloodbender named Laxus Dreyar. And although his bloodbending skills are great, he still has a lot to learn before he's ready to save anyone. But I believe Laxus can save the world.