From Dragon Age wiki
Morrigan
Morrigan is a powerful apostate mage and shapeshifter who serves as a key companion and advisor during the Fifth Blight.
Raised in the isolation of the Korcari Wilds by her mother, the legendary Witch of the Wilds known as Flemeth, Morrigan possesses a cynical worldview and extensive knowledge of ancient magic. She joins the Grey Warden during the events of the Fifth Blight, providing tactical expertise and arcane support while navigating the complex political landscape of Ferelden alongside allies such as Alistair Theirin and Leliana.
Role and Influence
Morrigan is best known for her pursuit of forbidden knowledge and her mysterious agenda regarding the soul of an Old God. Her involvement in the Dark Ritual, which she proposes to the Grey Warden before the final battle against the Archdemon, serves as a defining moment in the franchise that significantly impacts the fate of the world. Her complex relationship with the Warden and her eventual departure from the party remain central plot points within the Dragon Age narrative.