Hearthstone is introducing another of its annual Halloween events, this time with an eldritch horror twist. The series of events continues the year-long story that has been tracking through its various expansions, while also introducing a load of new events, a few special bundles, and the reintroduction of older cards into Standard play.

First, the game will introduce a series of spooky Tavern Brawls starting on October 8. Doom in the Tomb will come in two parts. The first week will let you play as a League of Evil member in a Haunted Temple, and completing the single-player run in record time will earn you rewards. Finishing in an hour will net you a Rastakhan's Rumble pack, and if you can manage it in 40 minutes you'll get a golden Ancient Mysteries card. The second week will be similar, but you'll play as Reno Jackson and the timed challenges will get you a golden Temple Berserker and golden Generous Mummy, respectively. The third special Tavern Brawl will be The Haunted Carousel, with a Rise of Shadows card pack to win.

Also during the event period, Blizzard is bringing 23 cards back from Wild and putting them into Standard rotation for a limited time. Most notably it includes some fan favorite cards that have been taken out of Standard, like N'Zoth the Corruptor, Sylvanas Windrunner, and Ragnaros. These will be "Event" cards, which means all players will be granted temporary copies for the duration of the event. You can see the full list of returning cards below.

The Arena will get its own special twist too with the return of a Dual-Class "Hallow's End dress-up party." You'll choose a Hero and then a separate Hero Power, and your pool of Arena cards will feature both classes. To try out the Arena event, you'll be able to claim Arena Tickets as login rewards during weeks 1 and 2. Other new Legendary quests and login bonuses will grant you extra packs and gold rewards.

Finally, Hearthstone will be offering "Hex & Flex" bundles during the event. The Hex bundle is themed after the League of Evil, offering 20 Rise of Shadows packs and a random Shadows legendary for $20. The Flex bundle is similarly themed after the League of Heroes, with 20 Saviors of Uldum packs and a random Uldum legendary for $20.

Doom in the Tomb Returning Wild Cards

• Druid: Astral Communion, Kun the Forgotten King
• Mage: Babbling Book, Flamewalker
• Paladin: Mysterious Challenger, Avenge
• Hunter: Lock and Load, Call of the Wild
• Shaman: Evolve, Thing from Below
• Rogue: Shaku the Collector, Swashburglar
• Priest: Lightbomb, Vol'jin
• Warlock: Imp Gang Boss, Renounce Darkness
• Warrior: Varian Wrynn, Bloodhoof Brave
• Neutral: N'Zoth the Corruptor, Sylvanas Windrunner, Ragnaros the Firelord, The Curator, Emperor Thaurissan