When you reach chapter two, purchase the Square ability CHEER UP for Ramza. Once you've acquired it, go into battle and use it on everyone on your team. It will temporarily raise their BRAVE by 5 points, and provide a permanent 1-point increase.

You can get your Brave up to 97. This works great if you have the Blade Grasp skill because the enemies will only have a three percent chance of hitting you!