The Terastal Fest ex set represents a significant moment in Pokémon TCG history, introducing mechanics that fundamentally shaped competitive play and collecting. Released in 2024, this Japanese set captured the energy of the Terastal mechanic from Pokémon Scarlet and Violet, offering collectors reverse holo variants that showcase stunning alternate artwork and foiling patterns. The set became a cornerstone release for players and enthusiasts alike. Kieran appears as a character card from Pokémon Legends: Z-A storyline, featured with distinctive artwork that appeals to both competitive players and character enthusiasts. The reverse holo treatment elevates the visual presentation, making this card particularly sought after by collectors who appreciate both the character's significance and the premium aesthetic the foil pattern creates.