Aether House
The Aether House opened on February 22nd, 2017, alongside the release of Ultra Beasts. It serves as the way to unlock the Beast Ball, which is required to obtain Ultra Beasts. Ultra Beast eggs can also be traded here.
Unlocking the Aether House
The Aether House is located under Nearby Places. In order to do anything here, the user must have unlocked the Eclipse Flute and have a Solgaleo and a Lunala in their Party. If these two Pokémon are not present, some dialogue will be displayed, but nothing will happen. If both Pokémon are in the Party, a different set of dialogue will display, and the user will be given a Beast Ball.
After obtaining and using the Beast Ball, a user can return here in order to exchange any Ultra Beast eggs in their Party for different Ultra Beast eggs, provided they have the Eggdex entry of the egg they are trying to trade in. The new egg will have the same amount of EXP as the one traded in.
Ultra Beasts
The focus of the Aether House are certain Pokémon called Ultra Beasts. In order to obtain an egg of one of these species, a Beast Ball must be used. Which Ultra Beast is summoned is random, but unwanted eggs can be exchanged at the Aether House.
| Pokédex Number | Name | Sprite | Type |
|---|---|---|---|
| 792 | Nihilego | 
|
Rock / Poison |
| 793 | Buzzwole | 
|
Bug / Fighting |
| 794 | Pheromosa | 
|
Bug / Fighting |
| 795 | Xurkitree | 
|
Electric |
| 796 | Celesteela | 
|
Flying / Steel |
| 797 | Kartana | 
|
Grass / Steel |
| 798 | Guzzlord | 
|
Dark / Dragon |
Other Pokémon
In addition to the Ultra Beasts, there are a few other Pokémon obtainable through the Aether House. These Pokémon relate to the Ultra Beasts, but are not themselves Ultra Beasts.
| Pokédex Number | Name | Sprite | Type | Method |
|---|---|---|---|---|
| 771 | Type: Null | 
|
Normal | ??? |
| 799 | Necrozma | 
|
Psychic | Use Black Prism |
