I am currently brainstorming with an idea where it basicly is the supressed magicians story, but I want some good reasoning for magicians to be exiled. Now here is the basic overview, the setting is earth, 2058, the world is in disarray the legendary magical material, Diathera. Humanity has been split into 3 major groups, all revolving around this useful and toxic material, The Global Defence Initiative, seeking to control the growth of Diathera and get rid of its toxic nature to serve humanity, then there is the Ditherians, a race made by this material, their only drive is to increase the spread of Diathera. Then there is the Order of the Exiled Magicians, the seek revenge on the GDI so they can resume their rightful placeas rulers over the non magical folk. So I have come of an logical explanation for the ability to supress the magicians, they have commando squads that specialize in eliminating the magic capabilities from an individual and restore it if necessary. Now, what would be abilities that would likely be wide spread enough to cause fear in the non magicians to a point where these squads would be necessary?