palkia
Masterball. (Cresselia)
The best way is to use a masterball. Since u only get one masterball in the game, use it wisely or cheat with a gameshark or action replay.
use a masterball.
I recommend trading a Pokemon from another games holding a masterball. If you don't understand. USE THE TRADED MASTERBALL!
masterball or time ball
Well a masterball(no kidding). But other than that, it is best to use quickballs first then try ultraballs and diveballs, and when you have been fighting it for a good amount of time, use timerballs.
You probally want to use it on mewtwo because it is level 70
masterball :) if not try use sleep and have at lowest energy and use fast ball or ultraball
isn't it obvious its masterball?:P but maybe ultra ball.
As you may know, Masterball is the best ball. I have both yellow, silver and gold. After I got the Masterball in either silver or gold, I traded with yellow. By making a pokemon hold the Masterball you trade it and in yellow you can clone it to have more of the best ball in the world. I would guess that Masterball is a lot easier to use when catching Mewtwo that a pokeball.
I would use a Masterball or a Nestball or a Ultraball. Hope it helps! ~Camille
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.