I counted out the number of colors in a rainbow which is 7. (not counting black, since it's not a color) So, I find that there is a missing school if each colors has a school. Red is fire, Orange is balance, Yellow is Myth, Green is life, Aqua is missing, Blue is ice, Purple is storm, and Black is death. Therefore, Aqua a mix of green and blue is missing. Btw, balance should be white, not orange.
