@Masterofdeath: He doesn't. He's jumping to conclusions and using deduction. Once he gets closer, he'll use the persona Loa to figure him out exactly.
question- how does raven's power mimickry work if the user doesn't know what his own abilities are? Does he mimic the actual ability or the perceived ability?
IE I think I can fly, but reality is I manipulate gravity. but I think the only thing I can do is fly.