I'd sugest Landorus.
I think you should use ur masterball on entei raikou or sourcune and maybey mew not mewtwo
masterball
masterball or time ball
on any legendary(just that it should be a strong or rare legendary)
no- at least not to start the battle you should try to catch it with something else you should use master ball as a last resort
It isn't meant for any one pokemon. Most people use it on Mewtwo, which you probably should use it on. You can catch the legendary birds and Mewtwo without a Masterball but it can take a long time.
Yeah it is possible to catch kyogre with out wasting your masterball you wont have to use it until you see latias and latias requires you to use your masterball.
no man u should paralize lugia then et him to red health then use ultra balls or dusk balls
wen u get masterBALL throw it on dialga or palkea
The legendary dog you find the dog that has a type advantage over your starter.
on the legendary Pokemon that you encounter on the game thx for reading x --:)--x
masterball or 4pokeballs+3 greatballs+8ulatraballs the ninth ultraball will catch it