Heracross δ, a Rare Holo card from the Dragon Frontiers set, is notable for its unique Delta Species designation, which introduces a Grass-type variant of the normally Bug/Fighting-type Pokémon. Currently valued at $55.54, this Reverse Holofoil (#3) card appeals to collectors due to its distinctive artwork and the set's popularity among fans. Its rarity and unique attributes contribute to its ongoing demand in the trading card market.