The way a challenge is supposed to work is that the challenged party has to complete the task with only the technology we have in the real world. There is a time limit of one year to complete the task. (This rule came up when I challenged Matt to capture the Emperor from Star Wars.). The challenge takes place within the targets universe. The challenged party is allowed an unlimited budget to complete the task.
I think it was another friend who actually challenged me to capture Magneto. I remember doing it so fast, I guess I had thought about something similar earlier that day. The objective was to capture him alive. Unconscious is fine but he has to be held alive.
I began by floating a rumour of anti-mutant actions happening all over the city. I then sent out a �leak� that a whole bunch of mutants were being held in a warehouse, making sure that the X-men are busy somewhere else. Therefore Magneto will be the only one to come running, I assumed anyway. That was the bait, here is the trap: Magneto has a force field that stops all solid objects from coming in contact with him. Although we can see him through this field, light can�t pass through the field. This is evident by the fact that the field protects Magneto from Cyclops� eyebeams. We can also hear him, meaning that sound can pass through the field. I take this to mean that I can use sound to knock him out. Concussive blasts probably won�t work, but a high pitched blasts will overcome his senses and knock him out cold. Onc ethis is done we just throw him in a plastic prison like in the movie. Except I would chain him down with high strength plastic and I wouldn�t let anyone near the prison. He can be fed with plastic feeding tubes. Nobody said I had to be humane.