I use CC in my Community College history classes, both FTF and online. I've found that in my classes, the in-class behavioral modification features aren't really a priority. In general, my students don't talk over me or otherwise act in a disruptive manner. Rather, what I want to encourage is good scholarship - turning in assignments on time, not skipping assignments, following instructions, doing drafts of papers, studying in advance for exams, and so on.
And on the rewards side, my students don't care about opening a window (ours are bolted shut anyway), changing seats (I don't assign them), getting a drink (they can go if they need to) or other small rewards.
So the main source of health loss is not logging in to our LMS and loss of points on assignments. And the main rewards are things that students always ask for anyway - extensions, the chance to revise, the ability to use notes on an exam or the power to ask for a hint about the exam. I make sure all characters have these powers. Generally they have them at the same levels, except for revisions. Revisions can be shared with others in their group, so Healers get it earliest, then warriors, then mages. But it's cheapest for mages and most expensive for healers.