Dream: Airbender gone wrong

This was one of those being chased dreams. Everyone has superpowers. Mine? If I move too fast in a single direction a glowing, writhing ball of explosives developed in front of me. My superpower was pulling the hydrocarbons out of the air to make an aerosol TNT. But only in front of me. If I timed it just right, then it would develop enough into an explosive and fall to the ground when I changed direction and explode in the face of whatever it was that was chasing me.