Charizard resemblance the basic build of a dragon, but with that famous anime twist
Each turn you generate energy, which you can attach to Pokmon to power their attacks
Sites such as TCGplayer can be used to check the value of cards, with live market values that will tell you just how much your cards are worth
There are also two types of flair, one that adds an effect over the card called cosmetic flair (like shining stars or glitter, as shown with the Kirlia example above) and one that shows an effect when you play the card in a battle called battle flair (as shown with the Mewtwo card above)
In fact, as the only Frankenstein card, Frankensteins Monster from The Dark was an obvious choice to make list
(And yes, you could argue those arent unique artworks, but the same applies to the Bilingual Exeggutor