no you cant it's impossible unless if you use a cheat the best thing to do with legendaries is to get them near 1 hp then put them to sleep or paralyze them then you use a ultra timer or net ball to catch them. Sometimes you might get lucky and catch them with a gr8 ball.
master ball
use a master ball
A master ball
The best ball to catch Deoxys is a Master Ball or a Timer Ball! Trust Me!!! Pokemon Master
the ultra ball is what i used to catch it...but you could use the master ball after you get it
master ball
Master ball
master. no other ball can hold it.
you catch him with a master
Master Balls, obviouslt
Any.
a master ball or you can make it go to sleep and make it have low health and catch it with a ultra ball