What unreleased or prototype cards do we know of?

[mrtonyz]

Information about the Prototype-like Moltres, Articuno & Zapdos

[GB Sprite banner] [Articuno] [Zapdos][Moltres] Legendary Birds GB Art Some new information surfaced about cards that have up to now been unknown. The artwork of the three Legendary Birds above is from the Pokémon Trading Card Game 2 Game Boy game. These artwork are best known for being featured on the Tropical Mega Battle phone cards as shown below: [Image from the "Silver Bible"] PSA graded examples Yesterday, Takumi Akabane (one of the original TCG developers) posted this to Instagr…