Tavern Brawl deck:
Warrior
Mulligan for 6+ drops in hand.
T1: Zombie Chow
T2: Annoy-O-Tron
T3: Alarm-O-Bot
T4: Death's Bite
T5: Sludge Belcher
Every other card in the deck is a 6+ drop, one additional Alarm-O-Bot, and one additional Belcher.
Incredibly hard to stop because the 1 drop and 2 drops tend to bait out early removal, meaning your opponent doesn't play minions AND your Alarm-O-Bot triggers.
If they save removal for Alarm-O-Bot then they waste their turn 3 not playing a minion, leaving you with board control right when you're drawing into Death's Bite, making it very difficult for them to get it back.
Your worst case scenario is a Priest playing silence because it lets them deal with the Alarm-O-Bot for free and still play out their turn.
I've lost once so far to a very smart Murloc Shaman, and I only lost that one because I drew the Kraken instead of Ysera when and had to bluff with Chillmaw