Yes but it would be really hard i tried and got him into yellow health and the Pokeball didnt shake once so you have to get him into the red health
no
I'm not quite sure what your talking about, but I would have to say that you would not have to catch it in a Master Ball.
Yes
you need to have two master balls.
yes, i caught suicine with a friend ball!
Use an Ultra Ball, not a Master Ball
Of course, a Master Ball catches any Pokemon without fail, Legendary or not.
This is impossible without the use of cheat codes, unfortunately. Only the Master Ball can catch Pokemon without fail.
Yes, you can catch Dialga without a Master Ball. Dialga can be caught with any kind of Poké Ball but Dusk Balls and Ultra Balls would be the better options.
not without a gameshark
You use a master ball
Any Pokémon is catchable without the Master Ball, though some-especially Legendaries-are harder than others.