In time, Dormammu tried to invade Earth's dimension and came into conflict with first the Ancient One, and then Doctor Strange. Eventually Dormammu was defeated, and the spell banishing Umar was broken. Umar was able to stop the invasion of the Dark Dimension by the Mindless Ones, and became ruler of the Dark Dimension. Despite having been banished by him, Umar sought to avenge her brother on Strange. She held Clea hostage in the Dark Dimension, to lure Strange back in. When she first fought Strange, she was the more powerful, but then the entity called Sayge showed Umar an image of Umar's original Faltinian visage. This sight drove Umar almost to madness, and she traveled to Earth to destroy it in revenge. There, she battled the Ancient One. Strange defeated her by summoning another monster; Zom, forcing her to flee. Umar later freed Doctor Strange, enabling him to defeat Dormammu.