The cards themselves, of which there are 32, are created by Inscription from Darkmoon Card of Mists, which is available from level 600 and requires Scroll of Wisdom. This has a daily cooldown, severely limiting the number of cards which can be made. [Corrected, thanks to commenters. Original post was written based on database relics]
The cards are bind on equip just like before, so can be traded and sold as previously. The cards are created randomly, and therefore unless you're very lucky, some trading will be necessary. As previously, there are four decks, Tiger, Ox, Serpent and Crane. Once you have all eight cards, the Ace through the Eight, right-click them to combine into the Deck.
These decks then allow you to start a quest, which asks that you hand in the deck at the Darkmoon Faire. All steps up to this point can be carried out at any time, but the quest hand-in can only be completed when the Darkmoon Faire is in town.
Handing in the four decks awards four different cards, with the exception of the Tiger Deck, which awards two. The trinkets and decks are as follows:
- Tiger Deck: Relic of Xuen or Relic of Xuen.
- Ox Deck: Relic of Niuzao
- Serpent Deck: Relic of Yu'Lon
- Crane Deck: Relic of Chi Ji
Mists of Pandaria is here! The level cap has been raised to 90, many players have returned to Azeroth, and pet battles are taking the world by storm. Keep an eye out for all of the latest news, and check out our comprehensive guide to Mists of Pandaria for everything you'll ever need to know.