Strength Expansion Pack: Dark Phantasma is a subset containing 99 cards and was released in Japan on May 13, 2022. Each booster pack contains six cards. The subset includes cards that depict characters, locations, and Pokémon from Pokémon Legends: Arceus—notably Hisuian Zoroark, which features as a Pokémon V, a Pokémon VSTAR, as well as a standard evolutionary line. The subset includes more Radiant Pokémon following their debut in the Battle Region subset as well as more Character Rare Full Art cards. Common and uncommon cards also have Mirror Holofoil variants that feature the same Poké Ball pattern as those from the Battle Region subset.