LATIAS no doubt that's what they ment it to be for i think.
The professor
you can't
I think you should use ur masterball on entei raikou or sourcune and maybey mew not mewtwo
in team aquas hide out
you could save your masterball for rayquaza and use a net or dive ball on kyogre
I am pretty sure you get a masterball.
In team aqua's hideout
from your enemy teams base
I'd sugest Landorus.
you will find one in team aqua's hideout
Well, if you don't have a masterball, use one... but you can catch one with an ultraball. My friend did. I ran out of them!
masterball