What to do next: Once youve searched mavin.io and figured out the value of your Pokemon cards, you have several options: If your Pokemon cards are valuable You could hold onto the cards and collect them, as most collectors do, and hope they appreciate in value over time
Fake cards and resealed products are common online, making it important to choose trusted sellers
How are you upgrading yours
The main problem with Dockside Extortionist, and with all the other cards banned in the wave, is that it can generate more mana than it costs to play exceptionally easily
Draw cards until you have as many cards in your hand as your opponent has in his hand
Send it off to a verified grading firm like PSA, wait a few weeks, and youll have the card back in a labelled grading block, complete with the score out of ten