Night Unison (Japanese: 強化拡張パック ナイトユニゾンStrength Expansion Pack: Night Unison) is the name given to the thirteenth Japanese subset released during the Sun & Moon Era of the Pokémon Trading Card Game and the first to be an considered an enhancement of the ninth main expansion, Tag Bolt, featuring the collection symbol "SM9a". The subset adds more of the newly introduced Tag TeamPokémon-GX to the TCG and has references to the Kanto region.
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Strength Expansion Pack: Night Unison is a subset containing at least 55 cards to be released on January 11, 2018 in Japan. The subset has particular focus on Darkness and Fairy-type Pokémon, with cards such as Greninja & Zoroark-GX and Gardevoir & Sylveon-GX providing support for Pokémon and Energy manipulation.