Hearthstone: Kobolds & Catacombs expansion will be launched on December 7
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That means that you still have time to pre-purchase the expansion for $49.99 USD and also add the gleaming FOR THE HOARD card back to your collection. The exclusive card back will only be given to players who pre-order Kobolds & Catacombs and will be received as soon as their purchase is processed.
- Dungeon Runs, the free single player content for this expansion that is roguelike and replayable; (This mode features 48 different possible encounters)
- 135 new cards;
- A new Keyword: Recruit;
- New card types: Spellstones and Unidentified Items;
- A Legendary Weapon for each of the nine classes;
- A random Legendary Weapon card and 3 Kobolds & Catacombs card packs free, just for logging in after release;
- Three sequential one-time Dungeon Run quests that each award one Kobolds & Catacombs card pack, for a total of 3 more Kobolds & Catacombs card packs.
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Keep in mind that you won't be able to open the new packs until the expansion goes live on Blizzard's servers, so you'll have to wait until December 7 (or December 8).
source: Blizzard
Things that are NOT allowed: