Blizzard Entertainment revealed the next expansion for its popular collectible-card game, Hearthstone: Heroes of Warcraft, earlier this week. One Night in Karazhan will introduce a total of 45 new cards when it releases on August 11, and while Blizzard revealed a handful of cards already, we expect it to reveal even more in a special livestream taking place in Los Angeles today at 7pm PT.

Today’s Hearthstone livestream will include senior producer Yong Woo and Dan “Frodan” Chou, and Blizzard encourages viewers to either wear a top hat or monocle while watching the event. This is a classy adventure, so we’ll be wearing our finest underwear while watching the livestream.

Nothing but the best for Hearthstone.

Watch live video from PlayHearthstone on www.twitch.tv