Well... fire, earth, water, and air; those are all elements that can be pulled from your surroundings. I have to pull spirit magic from my own vitality, which is why it's so taxing on me. I've had people try to use my powers for personal gain, because they think my abilities are a fix-all but they don't know what it's like to be a spirit user. If they did, I doubt anybody decent would ask me to use it.