Balastor Plain has a mojor role in the story. Here are the parts of the story that involve Balastor Plain.
You must head south until you reach a river and a bridge. Cross it and find Parma's Front Gate.
You must escort Raus' Caravan to Princess Cisna's Ball.
You must find Setti in the Waterfall cave in the Northeast section of the Plain.
- Sylvan Savage, Troll (first fight is boss battle)