~*Rekkuza Ryuu*~ said:You meet Mirror B. on top of Gateon port's lighthouse when you have caught the other 82 shadow pokemon. Also, Mirror B.'s radar has to be activated. Unfortunately, it does it on it's own, you have to wait for it.
The Great Butler said:Funny. Just this morning I battled Miror B. and caught Dragonite.......at half health with a Poké Ball.
I reset, of course. Once you snag Dragonite and save the game file, you can never fight Miror B. again. He finds the Miror Radar's transmitter in his hair and breaks it, then goes to hang out and dance at the Krabby Club. You can visit him, Folly, and Trudly there but they will never fight you again.