>>30456847>i dunno what the sigature on them says in terms of a nameIf the cards are signed, have a silver border, and a card back that says they're World Championship cards, then they're worthless. See pic related.
Every year, they release a special $10 deck for each of the three World's winners, then a fourth popular deck of the format. These cards aren't tournament-legal, making them no better than high-quality proxies you can print out.
http://bulbapedia.bulbagarden.net/wiki/World_Championships_Deck_%28TCG%29 