avatar world at war

this avatar game is about a spirit who bless's a mother to have quadruplets but those quadruplets are the avatars's they each have diferent bending abilities fire earth air and water and they are all rivals so they start a war there mum dies in the war so they all go into the avatar state unluckely the fire avatar blew the avatars up and the spirit but the spirit survived and blessed the whole world to have avatar powers.