Rainbow Energy – Holo (Pokémon Japanese Rocket, 1997) is a classic special Energy card from the Team Rocket era of the Pokémon TCG. It features a vivid rainbow-colored swirl at its center with a holofoil starbursts pattern on a dark background, illustrated by Takumi Akabane. As a versatile Energy card, it can stand in as any basic Energy type (though it also deals 10 damage to the Pokémon it’s attached to), making it a unique piece of gameplay history. Collectors prize this card for its nostalgic late-’90s style and rarity – it’s one of the standout holofoils from the Japanese Rocket Gang set and a must-have for vintage Pokémon TCG collections.