Preview SM088: Lunala VS UB:BLACK! A Full Moon Battle!!

[Rath]

Lunala and another mysterious Pokémon suddenly appear before the Ultra Guardians. As the two Pokémon engage in a fierce battle, a special unit from the Rocket Gang shows up to target them as well. And then Solgaleo also appears.

Screenplay 米村正二 (Shōji Yonemura)
Storyboard 尼野浩正 (Hiromasa Amano)
Episode Director 小柴純弥 (Junya Koshiba)
Animation Director 伊藤典子 (Noriko Ito)

Summary by Dephender.

I'm presuming that Solgaleo is Nebby

 

[SammyW27]

New summay from Dephender

The "Moone Pokémon" Lunala and another unidentified Pokémon suddenly appear before Satoshi and the others. The two start a fierce battle, but then the Rocket Gang show up to capture the rare duo. And then the legendary Pokémon Solgaleo shows up as well, making things worse and worse.

 

[BigDocFan]

Summaries and cast list, provided by Adamant on pocketmonsters.net

A Lunala and a mysterious Ultra Beast suddenly appeared from an Ultra Hole. A fierce battle then immediately broke out between the two. And then even Solgaleo appeared... How will this battle end?!

Summary:
A Lunala and a mysterious Ultra Beast appeared before Satoshi and the others! The two them immediately start battling. The Ultra Guardians attack the mysterious Ultra Beast in an attempt to rescue the Lunala, but their attacks have absolutely no effect. A special unit from the Rocket Gang shows up as well, targeting the duo. But just when it seems like all is lost, a Solgaleo appears from the Ultra Hole! How will the battle end?!

Voice Cast:
Rica Matsumoto: Satoshi
Ikue Ohtani: Pikachu
Daisuke Namikawa: Rotom
Kei Shindo: Lilie
Kaito Ishikawa: Kaki
Reina Ueda: Mao
Hitomi Kikuchi: Suiren
Fumiko Takekuma: Māmane
Keiichi Nakagawa: Professor Kukui
Unsho Ishizuka: Principal Okido
Megumi Hayashibara; Musashi
Shinichiro Miki: Kojiro
Inuko Inuyama: Nyarth
Yuji Ueda: Sonansu
Rikako Aikawa: Kapu-Kokeko
Risa Shimizu: Kapu-Tetefu
Toru Sakurai: Silvady
Kiyomi Asai: Matori
Keiko Sakai: Gozu
Nobuhiko Okamoto: Gladio
Sayaka Kinoshita: Lusamine
Sachi Kokuryu: Burnet
Mitsuaki Madono: Sauboh
Chika Fujimura: Wicke
Nobuyuki Hiyama: Hala
Miyuki Sawashiro: Lychee
Masaki Aizawa: Kuchinashi
Sumire Morohoshi: Acerola
Chinami Nishimura: Grunt
Ryota Iwasaki: Grunt

 

[Neo Blaze]

Here's the official preview from TV Tokyo:

View: https://www.youtube.com/watch?v=OXHjPfClO4M

 

[Singaporean]

Second preview of the episode: