Blizzard gave Hearthstone [official site] a rotating lineup of special modes and altered rulesets with Tavern Brawl, and the latest brings a much-requested feature: co-op. Kinda. Ish. The ‘Unite Against Mechazod‘ brawl kicked off this afternoon, with a two-player challenge to take down a gnomish inventor. It may not be quite the co-op mode you’ve wanted, but it is an interesting addition.