Professor Elm gives you the only master ball in the game.
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
no
snorlax
just throw your master ball away
latious
prof. oak
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
all of them