I was pretty sure about the Walle that it was diamond foil, but not sure at all about Zappit. Seems like I'll need to see more of them to distinguish the radiant version.
The class is determined by the healer, right? If we won't have healers until later, for the initial public access for holders of alpha vials (if that's still planned) what class will we have? Or we will have a default healer to use of a certain class? And all progress in-game to be reset when beta arrives, if I remember well.
Either way, congrats to you and the team for what I've seen so far! I'm looking forward to the game.