A master ball
Tornadus is level 40 when you first see it. it is hard to catch because it always breaks out of your poke ball and flees
The best ball to catch Deoxys is a Master Ball or a Timer Ball! Trust Me!!! Pokemon Master
Dusk balls
You should use a Master Ball or a ton of Ultra Balls and you might get lucky.
A regular pokeball I'm not playing I caught entie with it jk the best one is a master ball but I did catch entie with a poke ball
you catch it with a poke ball
master ball
use a poke ball
by throwing it
with a poke ball
Catch him with the second master ball you get from the guy at the pokemon center at the top after you have traded 50 times
the ultra ball is what i used to catch it...but you could use the master ball after you get it