Hearthstone’s final Karazhan adventure episode is live

Last call for potions … or whatever the hell Warcraft characters drink at a night club. You don’t have to go home, but your one night in Karazhan is almost over — and you can’t stay here.

Blizzard has unleashed the last episode in the Karazhan adventure for its Hearthstone card battler. This introduces another round of boss battles as well as several important cards to help your deck stay competitive in head-to-head play. You can buy this latest wing right now for $7 or in a bundle with the other three wings for $20. For Blizzard, this kind of content helps it keep players engaged and spending money, and regular updates like this have turned Hearthstone into the top digital card game in the world with around $20 million in revenue each month.