With no real idea of what to do going into this Tavern Brawl, I started out with a deck I had been having fun with a while back, deathrattle aggro quest priest.  The first few runs were a flop, but after getting an understanding for how the brawl works and tweaking the deck around to counter Dalaran and last as long as possible, I settled on this list and managed to reach the turn limit with it.

The gameplan here is to try to render Dalaran's board as useless as possible by leaving gifts up and silencing the 0/x Taunts, Target Dummys and the 0/2 flags that give adjacent minions +2 attack. once the board is locked down and Dalaran cannot summon or play other minions, you can start going face.  there are a few buff cards in the Tavern Brawl's deck that can mess with this strategy, but provided the buffed minion isnt traded into yours you can just silence it again. The real card that ruins this strategy is the single copy of [Hearthstone Card (Enter the Colosseum) Not Found]. This can destroy all the 0 attack minions we worked so hard to get stuck there.  When i got hit with this I thought the run was over, but it actually helped by letting me kill minions to refill my deck with Spirit of the Dead by trading them into the minions it summoned.  I noticed that once I gave my Spirit of the Dead reborn with Embalming Ritual the ai seemed to completely ignore it.

I ended up getting a few copies of the treasure that destroys a minion and gains double its stats which allowed me to do the majority of the damage i did before the turn limit. A few more tweaks could probably be made to have a more reliable damage output in the late game and a Violet Illusionist might be a good idea to avoid fatigue if you cant get any Spirit of the Dead shenanigans off.