Every time I encounter tornadus he runs away what do I do keep him from escaping I tried using mean look but when it wore off he ran away please help!
Use mean look and then baton pass. Then attack and catch it. I normally use crobat.
I like to switch to a bisharp who can thunder wave and then false swipe. If it runs away just repeat the process
You can also use Spiderweb with a spinirak. Just make sure that it has really good moves, because if it faints or you switch it, Tornadus can and will escape.