Wizards sent retailers an email-blast concerning a bit of confusion caused by the one of the two Goblin tokens included in the Knights vs Dragons duel deck product. Since only the Dragon deck uses tokens, specifically the two Goblin tokens, Wizards sought to balance out the packaging and put a token as the top card in both cellophane wrapped decks. This confusion has led some customers who open their product to think their product was incorrectly filled with two Dragon decks. Rather instead it's the two different decks and just the top token is the same on both.

Here is the original notice.