after re reading most of my flash trades while my computer was down i have to ask
why aren't there more mirror master threads?
mirror master should take this.
MM finds out wherever mysterio is hiding then slashes Mysterio's reflections neck causing the real Mysterio to die(if he's anywhere near a reflective surface) Or simply sticks out his hand and shots him causing him to shatter to pieces.
if there multiple mysterio's he simply goes down the line until he finds the real one. or attacks them all at the same time.