How do you unlock better weapons ? I'm nearly 20 hours into game Vann, Baltier and Fran are lvls 20 with lvl 3 mist knacks, Basch Ashe and Penelo I dont even play with, and I did some hunts and in story line I;m about ot enther the dead kings tomb, and still I can't find any thing better than like Ancient Sword for Vaan...