maybe kyorgre with hydro pump and it will be super efective ps. i an trade on diamond around 1:00-10:00
if you mean between kyogre and groudon, then the battle in sootopolis.
In Pokemon Ruby and Sapphire there is no battle between Kyogre and Groudon. That is only in Emerald version. Instead the legendary pokemon (in your case Groudon) is inside the cave of origin in Sootopolis City.
There are many legendary Pokemon in emerald, such as groudon, rayquaza, groudon, deoxys, and such. Groudon and Kyogre are not available until after beating Wallace, but Rayquaza can be caught right after the major battle between groudon and kyogre.
You battle Kyogre for your chance to capture it in Pokemon Alpha Sapphire after you capture the groudon.
rayquaza would then groudon then kyogue
Kyogre because Kyogre is Water and Groudon is ground, which is weak to water.
kYOGRE AND GROUDON ARE IN POKEMON MOVIE UR MOTHER
groudon,kyogre and rayquaza groudon,kyogre and rayquaza
Groudon and Kyogre are unavailable on Pokemon Ranger.
In a battle Groudon,would win you see groudon has 150 attack and 140 defense kyogre has 90 attack and 90 defense threfore groudon rules!
they are both Pokemon that control the wheather. kyogre=rain groudon=sunny
You can't get Kyogre in Pokemon Ruby but you can get Kyogre in Pokemon emerald and sapphire and in ruby you only get groudon and rayquaza. In sapphire you get Kyogre and rayquaza and in emerald you can get groudon, Kyogre, and Rayquaza.