Has the ability to declare a color of magic, rendering all spells of that color unable to be cast by opponents. This ability made her a formidable opponent in battles where a single color of magic was dominant. However, against the colorless Eldrazi, her powers were ineffective. Iona's followers believed that she was the "Shield of Emeria," and her actions were tied to a distorted vision of Emrakul. Despite her efforts to fight them, her actions inadvertently served as a tool for the Eldrazi.