i would have to say that thebest one to use it on would be a legendary dog because just buy alot of ultra balls and save before you battle ho-oh and then you have a better chance
ho oh
probaby kyogre
use a master ball
To get an additional master ball, you must either trade it from another Pokemon game, or use cheats to get one.
You have to fight it until its weak then use a master ball
it is something stupide
no
if you dont wanna waste your master ball, then the strongest ball will be the Ultra Ball...
master ball, paralyze and block, false swipe and random balls
I used a Master Ball, but if you don't want to waste it then use A LOT of Ultra Balls.
After you defeat the main 8 gyms professor oak will call you to his lab and say he has something for you. Then he will give you a master ball.
After beating the Elite Four, return to New Bark Town and talk to Prof. Elm. He will give you a Master Ball. *Remember this is the only Master Ball you will get in the whole game!*