Pokemon Japanese VS Card Prices Holo, Rare, & Graded Cards Pikachu [Mirror Holo] #225 Prices Pokemon Japanese Start Deck 100 Battle Collection Pokemon Cards Artist signatures continue to show collector premiums, and it all depends on who signed the card. Here's a look at 3 recent signed vs unsigned auction sales: PSA 10 10 Hitoshi Ariga The Most Valuable Mega Brave Japanese Pokemon TCG Cards