Hope you don't mind if I ask another Pyros question here instead of making a new thread.

A FC mate of mine is trying to get the pyros armor, and bought a bunch of logograms and says he has all 50 actions now. Does he have to reach a certain level in Pyros to unlock the vendor to buy the armor? I want to help him but I only focused on the weapon and stopped at 30 logos actions. I'm guessing he has to progress to a certain point in the Pyros story or something to start buying the armor?