15 strongest Greninja Pokemon cards Dexerto From a PSA 7 to a PSA 8. That might sound like a small jump, but in the world of high end Pokmon cards and grading, even a single grade increase can mean thousands in added value., This 1999 The 12 Strongest Pokemon Cards Right Now Joseph Writer Anderson Pokemon Card Azumarill Neo Genesis Unlimited Holo Rare PSA 7 Dark Charizard Team Rocket Holo Japanese PSA 7 TBC Games Unleashed 8 Shaymin Holo PSA 7 Collectors Edition 101