While Ixidor, Reality Sculptor isn't as flashy, you can always depend on it to do what you want
Nostalgia is kingGen 7 and older sets like Bandai Carddass are surging, with Charizard prisms up 30% on speculation of special box sets
Choose 1 of your opponent's Active Pokmon's attacks and use it as this attack
This deck revolves around fast artifact mana through Urza, which it uses to rush out stax pieces and eventually combo off by using a Polymorph on your Construct token
As mentioned, some of the ones that collectors are always on the look for are what are called V and EX cards, which are full art displays of the featured Pokemon
The best choice for you will depend on the cards you have to sell, and how much prep work you're willing to do