Pokemon Legendary Heartbeat [S3a] Japanese Booster Box

1 factory sealed booster box, with 20 packs

Each booster pack contains 7 cards, including 1 guaranteed Holofoil card. (randomised cards)

Language: Japanese

Release date: July 10, 2020 

Legendary Heartbeat (Japanese: 強化拡張パック 伝説の鼓動 Strength Expansion Pack: Legendary Heartbeat)

...is the name given to the third Japanese subset released during the Sword & Shield Era of the Pokémon Trading Card Game. It is an enhancement of the third main expansion, Infinity Zone, featuring the collection symbol "S3a". It continues the introduction of Generation VIII Pokémon to the TCG.

This subset contains more than 76 cards that will be released on July 10, 2020 in Japan. The set was originally slated to coincide with the release of the twenty-third Pokémon movie, but the movie was delayed to a later date due to the COVID-19 pandemic. It features the Rogue Monkey Pokémon Zarude, which debuted in the Pokémon Sword and Shield Expansion Pass and the movie.