As of late I've been bouncing a story idea around, and the magic system I came up with is based in emotions, as one would guess from the title. Chenneling an emotion uses it up in the process, so a way to perpetually fill yourself with what you need and good willpower are good traits to have in it.
Unfortunately, I have, as usual, hit a bit of a roadblock with the idea, in the sense that I don't rreally know what to use everything for. Anger would probably be more of a destructive power by simple nature of the emotion, but simply deciding to assign categories to individual emotions forces me to pick a handful of "Primary" emotion from which all others are composed. If you go with current theories, this means I have anger, disgust, fear, happiness, sadness and surprise to work with, which leaves me with only one "positive" amung five "negatives".
In short, I'm stuck, so instead of butting my head against it for a week to come up with something, I'm taking to (likely more productive) shortcut and asking for help.
Any ideas?