No one knows what the Guardian is. It is said that they are there to protect the Avatar and help them learn the elements. The Guardian is rumored to be a myth, since it is said that not every Avatar gets one. Guardians have the same power as Avatars, they cannot go into an Avatar state though. Aang, Sokka, Katara, and Addi will help save the world.

Water, Earth, Fire, Air, Void. Also known as Ether, it is the fifth element, one that has been buried in the past. It is the material that fills up the cosmos and connects everything, possibly the most dangerous element to wield. Just one year after Aang ended the 100 Year War, the forgotten element resurfaced.