Satella (サテラ) is the Witch of Envy responsible for the Great Calamity 400 years ago who is currently sealed in the Evil Sealing Stone Shrine, located somewhere in the Augria Sand Dunes, close to where the Pleiades Watchtower is currently standing. In reality, the Witch of Envy is a separate personality that formed when she took in the incompatible Witch Factor of Envy.