Legendary Heartbeat (Japanese: 強化拡張パック 伝説の鼓動Enhanced 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. It continues the introduction of Generation VIII Pokémon to the TCG.
Enhanced Expansion Pack: Legendary Heartbeat is a subset containing 94 cards that was released on July 10, 2020 in Japan. The set was originally slated to coincide with the release of the twenty-thirdPokémon 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. The set introduces a new rarity, Amazing Rare, which features Legendary and Mythical Pokémon. Each booster pack contains 7 cards, including 1 guaranteed Holofoil card.
The Legendary Heartbeat set is released in Japanese and Korean, only available in unlimited edition. Since the Sun & Moon era, Japanese 1st edition cards are no longer printed. Cards in the Korean set were also available as Reverse Holos.