So Fire Savants were given an ability to do 1d6*enhancements stacking up to 20 times. This seemed pretty awesome, so I rolled my toon over into one. It worked, but not quite as I had hoped.
Sitting in a firewall, the mob doesn't take additional stacks.
Incendiary Cloud didn't seem to add a stack at all, only on occasion.
Scorching Ray has three beams, yet only adds one stack.
In practice, I couldn't get the stack to go above 5 before any given mob died. That damage was about 150~. Not terribly impressed. I would hope this isn't WAI.
Apart from that, good job turbine. The trees work much nicer than the clucky old system we had before and lots of new possibilities have been opened up. I need to completely relearn the game, though