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

Pokemon fans are celebrating Mewtwo on social media today, and that's because February 6th happens to be the Pokemon's ...

This Mewtwo GX isn't shiny, but shares a similar situation to Entei, as you can catch glimpses of its shiny coloring in the glints of the Rainbow Secret Rare. Mewtwo isn't immune from sharp price ...