'Eternal Pyro giant
This is an ancient being that embodies the eternal flame. It is known as a burning skeleton to those who are not aware of the history and majesty of its being. While it eternally roams through all elemental planes, it is considered one of the key focal points for why the elemental planes are able to shift naturally without grand issues.
In ancient times, there were multiple beings that gathered immense amounts of each elemental manas to create bodies for themselves. When the elemental wars began, they spent a hundred years sacrificing their manas and bodies to become skeletal beings with only the flow of the elemental planes as their focus.
When they move in unison through all the elemental planes, the prompt rotation along with balance. They even cross through the central areas of each elemental plane without any ability to stop them. They will never rest and represent the eternal aspects of the mana they embody.