Suggestion for the next Tavern Brawl anniversary event

In a similar vein to "Cavalcade of Brawls", I'm thinking the next Tavern Brawl anniversary event could be "Brawl Roulette" - you pick a class, and when the two players are queued up, the game chooses a random brawl and the match proceeds under those rules. For brawls where you construct a deck, you get a pre-made one that devs judged to be particularly interesting.

Obviously, not every brawl fits (PvE and coop brawls are right out, as well as stuff like Ragnaros vs. Nefarian and the like), and even of all brawls that could theoretically be made, they'd have to select a small number of them to prevent it from getting too insane. (And leave "meh" brawls out, like say, "Dark Recipes" or whatever that one was called.) If they managed to do that... I think it would be pretty awesome. What do you think?