How do you get spellweaver in dragonage origins?

To unlock the Spellweaver specialization in Dragon Age: Origins, you must be a Mage and complete a specific quest. First, you need to speak with the Arcane Warrior trainer in the Circle of Magi or find the Spellweaver trainer in the game. After completing their respective tasks, you can then choose Spellweaver as your specialization option when leveling up. This specialization enhances your magical abilities, allowing for more powerful spellcasting.