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)
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Icbrgr on Easter Eggs in MTG Art 1 year ago Expropriate
Bad Primes that easily go for 1 pack include just about everything other than Donphan, Mew, Magnezone, Yanmega, Gengar, Typhlosion, and maybe Kingdra
The main way that more copies will come on the market is from Commander players who buy the deck and decide to sell the card rather than keep it and put it into a deck
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