Blizzard came up with a great idea- Heroic Tavern Brawl! The Heroic Tavern Brawl is a new Hearthstone challenge. You will need to build a Standard deck from your cards collection, and play just like Arena (12 win is the maximum & 3 losses to lose). The entry fee will cost 1000 gold or 9.99$, which is a lot but the prizes are INSANE!
If you are a good player with a good deck you should participate in this event and try to go for the 12 wins jackpot!