If you happen to be in the area, Blizzard has announced that the upcoming co-op Tavern Brawl where we'll take on Nefarian is playable during this week's GamesCom in Cologne, Germany from August 17-21.

"Visitors to the Blizzard booth will be able to hone their Hearthstone card-slinging skills and join forces with a friend to take down Nefarian (again) in a new cooperative Tavern Brawl," the press release states. For those of you who can't be there in person, we've whipped up a quick preview from all of the cards that are in our database.

You'll notice he has 200 Health and can't be targeted by spells, which means Blizzard will have to give you some tools to help the fight. It seems as if he has a special activation point where his spells will grow more powerful via Don't Push Me! and Glorious Finale. Below we've listed cards that are special for you and for him, and you'll notice his cards have multiple versions, further supporting the claim that he enrages at least once when he reaches a certain point.

Unlike Unite Against Mechazod, Blizzard has really structured the Nefarian encounter like a raid in World of Warcraft, right down to the neutral cards.

Special Neutral Cards: Freewheeling Skulker, Intrepid Dragonstalker, Main Tank, Raid Healer, Alms of Light
Special Priest Cards: Shadow or Light?, Twisted Light
Special Shaman Cards: Elemental Eruption
Nefarian's Cards: Cleave, Explosive Rune, Flame Missiles, Immolate, Explosive Rune, Bamboozle
Enraged Nefarian Cards: Cleave, Explosive Runes, Flame Missiles, Immolate

We don't know when this brawl will debut, but it's safe to say we'll be seeing it soon.