From valuable first-edition classics to some attention-grabbing shiny versions, these are the most valuable Mewtwo cards.

Shining Mewtwo is one of the rarest cards from the Neo Destiny expansion, featuring special foil over its design. A first edition version of this card can go for as high as $3,750 Mewtwo Star is ...

Ever wonder about how much your old Pokémon cards are worth? If you've got the cards on this list, you're sitting on a ...

Cards like Celebi ex and Gyarados ex have firmly taken their place besides the classic contenders like Mewtwo, Pikachu and ... can do major damage in their first few turns on the field, and ...