Vice & Virtue
The avatar is the personification of Life on earth. It represents all living things on earth and has control over any and everything on this planet.
It acts as both a guardian and a keeper of balance.
When Ultimo demanded that all life be turned in to andoids the avatar destroyed him and when the altered timeline threatened to destroy earth-prime the avatar (together with the magister) created a new world.
The avatar also removed all superpowers from earth when he felt that humanity was becoming too arrogant.
The avatar can only be summoned on the island of Atlantis using a ritual that requires occult relics from various ancient civilisations.