As long as you cast a lot of cheap instant and sorcery cards early-game, its huge initial cost of 10 colorless mana is reduced by one for each of those cards in your graveyard
Find your Support ID
Pikachu Illustrator 1999 Charizard (1st Edition, Holo, Shadowless) Raichu (Pre-release) Dark Dragonite (1st Edition, Non-holo error) Pokmon Tropical Mega Battle Kangaskhan Parent/Child Masters Key Prize Card 2007 Espeon (Gold Star, POP 5) 1999 Dragonair (1st Edition, Shadowless, Misprint Error) Check out the misprint here: Chansey (1st Edition, Holo) Factors Affecting Value of Pokmon Card If you managed to dig up your stash of Pokmon Cards or looking to invest in them, here are some of the factors that will affect the price your Pokmon Card fetch
Its also worth mentioning that these errors can happen across multiple cards
As for the price discrepancy between the two art versions of the card, we see this often and I'm never quite sure if it's because people badly crave the original artwork, or if it's simply that the special treatments are more common in rare-stuffed collector boosters and therefore there are more of them on the market