Satella in "Re:Zero" is the witch of what?

Satella in Re:Zero is not the Witch of Envy, but rather she is the Witch of Envy herself. Satella's true identity is the Witch of Envy, known for her uncontrollable and overwhelming emotions of envy that consume her. This aspect of her character is depicted through her ability to return from death, as she constantly desires to be together with Subaru, the protagonist. Satella's immense power and the havoc she wreaks on the world make her the embodiment of the Witch of Envy.