Love the color choices, and the history/origins of the power. I appreciate the effort in the design. Taylor covered much of what I would suggest. I might add that using words to show importance repeatedly, can take away the very effect you're using them for. Mood, Vibe, Feel all describe essentially the same thing but don't become "standard." An example is "might," where you could use: arcana, vigor, force, or sway. Bonus for using my favorite color purple!