skyridge pokemon booster box Mysterious Mountains 1st ED pack e5 (Skyridge) – Collection From Japan by ichigoichieLLC Choose artwork and weight in the selector. Skyridge - Booster Pack

The ability is also potent

The gold silhouette treatment transforms Charizard into a mythic emblem rather than one of the best Pocket Monsters, but with even more mystique than Mega Lucario and Mega Gardevoirs

The cost would be the combined cost of both halves, they would be put on the stack as a single spell and would resolve starting with the left half (which usually made the right half work better anyways)

Then theres the third parallel set which could represent a sixth version of each Pokemon, and then on top of that youve got the Black & White cards and the trainer cards, which will also have Reverse Holo and ultra rare versions