The Energy Guardian was the individual born to represent, serve, and protect the Pillar of Energy, one of the Pillars of Nosgoth. All Pillar Guardians belonged to the oligarchy of sorcerers known as the Circle of Nine.
The Energy Guardian is the individual chosen by the Pillar of Energy as its guardian.
As the title suggests, the pillar grants its guardian to manipulate energy. These energies may vary from biological processes to magic. As proven from the battle with DeJoule, the guardians have the ability to manipulate fire and electricity.