1995 Topsun Holofoil Charizard: $37,600 Anything that can tie the different Pokmon media together is a money-maker, and the promotional Topsun Holofoil card packs from 1995 did just that
The last part of that answer is interesting
If you're lucky enough to find one in LP condition, then expect to shell out around $33, though there are no recent NM sales to set the current ceiling
2 Gyarados XY60: XY Promos (Staff) $360.55 Up For A Ferocious Fight Gyarados is right up there with Charizard as one of the most recognizable Pokemon from the original 151, but this card featuring the Kantonian classic is from the XY era

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Several cards on this list let you play lands from your graveyard