The new Hearthstone game mode, Duels, is one of the new feature brought with the new expansion: Madness at the Darkmoon Faire. At the crossroads between Arena and Dungeon Runs, the Duels mode will allow you to choose a Hero, a Hero Power, a starting Treasure, and build a 15-card starter deck from your collection before battling against a series of human opponents.
From October 28 at 6:00 p.m. CET until November 2 at 8:00 a.m. CET, Blizzard will be offering early access to Duels to 500 viewers every hour from any channel broadcasting Hearthstone on Twitch.
To receive rewards, you will need to have linked your Twitch.tv and Battle.net accounts.
To support the theorycraft streams and the pre-launch weekend, Blizzard is launching an event! Lots of freebies and activities are scheduled starting November 11