Placing all of the rare cards you've collected into a battle-ready deck is one of the most satisfying reasons to keep playing ...

UPDATE: We've put together some new decks using the Space-Time Smackdown expansion and added them to this list. These include deck guides for Cresselia ex, Yanmega ex, Darkrai ex and Weavile ex ...

From a flying Dragonite card that was only available during a tournament to a highly sought-after Japanese Charizard promo card, some Pokemon promo cards are worth keeping an eye out for.