Ultra Sun

Ultra Sun is the Japanese fifth main set of the Sun & Moon era, built around a Sinnoh theme and the TCG debut of the Dusk Mane Necrozma form. The set has 78 cards and focuses on Pokémon-GX, with Leafeon-GX, Dialga-GX and Dusk Mane Necrozma-GX as its most recognisable cards. The series also stands out for introducing the Prism Star rarity, found here on Solgaleo, Darkrai and Cyrus among others.