by Kale » Sat Apr 04, 2015 4:48 am
The main source for burning grounds is the crossroad merchant in chapter 1. They appear after the Namunama incident has concluded, and remain until you have shopped there once. There are also 3x you can find in chapter 2.
You’ll have to experiment with other attack items or skills to find something else that works instead. I think there is a merchant in the chapter 3 institute that sells attack items like the 'gun', etc. One of those was supposed to work as an alternative.