Who to use the masterball on in Pokemon emerald?

* Rayquaza: Rayquaza is a powerful Legendary Pokémon that can be found at the Sky Pillar. It has a high base stat total of 680 and can learn a variety of powerful moves, making it a valuable asset to any team.

* Groudon: Groudon is another Legendary Pokémon that can be found in Pokémon Emerald. It has a high base stat total of 670 and can learn a variety of powerful moves, making it a great choice for players who want a strong Fire-type Pokémon.

* Kyogre: Kyogre is a Legendary Pokémon that can be found in Pokémon Emerald. It has a high base stat total of 670 and can learn a variety of powerful moves, making it a great choice for players who want a strong Water-type Pokémon.

* Latias or Latios: Latias and Latios are two powerful Psychic/Dragon-type Pokémon that can be found in Pokémon Emerald. They both have a base stat total of 600 and can learn a variety of powerful moves, making them a great choice for players who want a strong Psychic-type Pokémon.

* Jirachi: Jirachi is a Mythical Pokémon that can be found in Pokémon Emerald. It has a high base stat total of 600 and can learn a variety of powerful moves, making it a great choice for players who want a strong Psychic/Steel-type Pokémon.