Dragon Age: Origins Walkthrough - Killing the Archdemon

This is it. We just have to kill the archdemon to end the battle and save the world. I'll tell you how to use the ballistas (ballistae), how to fixed a jammed ballista, how to survive the Archdemon's attacks, how to hold off the darkspawn, and how to finally bring down the archdemon and win the battle. If you need any help at all, then read the end of this Dragon Age guide.