After you defeat Clair the man blocking the way inside dragons den will allow you to go in when you find the dragon fang in the dragons den Clair will appear and give you the 8th badge she will also give you the dragonbreath TM when you leave the dragons den you will get a call from prof elm to come to his lab when you go to his lab talk to him and he will give you the master ball
Prof. Elm will give it to you after you beat the eighth badge.
there is no master ball in diamond and also great ball. but there is silver ball-silver ball is like a master ball.
you cant get two master ball's in silver
snorlax
no
just throw your master ball away
latious
prof. oak
Professor Elm gives you the only master ball in the game.
Use A Master Ball Or Ultra Ball To Catch. But I Think It is Hard To Find Master Ball...:/
you don't need the master ball for any Pokemon but i would save it for ho-oh lv 70
After you get all 8 Johto gym badges go to pr. elm and he will give you a master ball
you can only get 1 master ball to catch lugia, or you can use the Pokemon modifier cheat