Pokemon ash ketchum 41 The Best Ash Pokemon Cards Revealed Introducing: PSA's official Pokmon Error Guide Ink stains, incomplete holos, ghost stamps and beyond are treasures in their own right. PSA recognizes 30+ errors, and this guide should help you hunt While this is by no means an exhaustive list of error cards, these are some that I found especially interesting! Which are your favourites? Are there others you've heard about? Did you