Both Kyogre and Groudon will download at level 60 if they transfer to either Sun or Moon, and level 100 if you transfer them to Pokémon Ultra Sun or Ultra Moon. Ultra Sun and Ultra Moon players will also receive both Legendaries with a gold cap to maximize their individual stats (IVs).
Depending on which wormhole you land in, the Pokemon you encounter will be completely different. The first thing you need to know before embarking on this mission is that Both Groudon and Kyogre must be on your team for Rayquaza to appear because the lore is real damn it .
So yes, to get them all you have to trade. The full list of legendary Pokemon is below! Ultra Sun will have Ho-Oh, Raikou, Groudon, Latios, Dialga, Heatran, Reshiram, Tornadus, Xerneas while Ultra Moon will have Lugia, Entei, Kyogre, Latias, Palkia, Regigigas, Zekrom, Thundurus and Yveltal.
If you want Kyogre, you must transfer it to Pokémon Sun or Ultra Sun. Groudon can only be downloaded in Pokémon Moon or Ultra Moon. Both Kyogre and Groudon will download at level 60 if you transfer them to either Sun or Moon, and at level 100 if you transfer them to Pokémon Ultra Sun or Ultra Moon.
Kyogre must hold the Blue Orb to undergo Primal Reversal, while Groudon must hold the Red Orb instead. You can purchase both items from Antiquities of the Ages in the Hau’oli City Mall in Pokémon Ultra Sun, Pokémon Ultra Moon, Pokémon Sun, and Pokémon Moon.
Although the Ultra Beasts are not Legendary, they share some characteristics with numerous Legendary Pokémon: They are all gender-independent, belong to the “No Eggs Discovered” egg group, have scripted encounters, and have special combat music at least three IVs out of 31 and special Rotom Pokédex pages.
The first Darkrai distribution for Pokémon Ultra Sun and Ultra Moon starts April 27th in South Korea. Coinciding with the long-awaited release of Pokémon: The Rise of Darkrai in South Korea, fans in the region will soon be able to get their very own Darkrai in Pokémon Ultra Sun and Ultra Moon.
Players can get a code for either the Legendary Pokémon Lugia or Ho-Oh from the Johto region. Ho-Oh is a Fire/Flying-type Pokémon while Lugia is a Psychic/Flying-type Pokémon. Pokémon Ultra Sun or Pokemon Sun players can add Lugia to their game.
Tapu Koko is a vaguely rooster-like Legendary Pokémon.