I've played quite a few dungeon runs tonight and I think it's a really amazing single player expansion mode. You don't need any cards in your collection and can select the ones you want to add to your deck as you make your way through the dungeon. I got to the second to last boss but lost because they held over 20 damage in 4 spells and just demolished me in one turn. Dungeon Run mode is really fun and does capture the rogue like spirit as you can randomly find awesome cards and that can swing many boss fights in your favor. The new single player Dungeon Run mode is really fun but downside is you can't complete daily quests playing it. That's a huge bummer because the only way to grind for gold to open card packs is to complete quests BUT if you are looking to come back to Hearthstone and don't know the game well or have many cards Dungeon Run mode is the one to try.
https://playhearthstone.com/en-us/blog/21274279
I love this video so much, I'm redownloading the game now!
Thanks for the head's up. I checked it out, made it to the 4th battle I think. I also noticed other expansions had some single player mode battles I could do for free. I hadn't looked in that area for a while and I wrongly assumed you had to pay to access them. Maybe you have to purchase or spend gold to unlock more of them, that's how the first expansion was, I think.
Oh and I had 9 unopened packs just now. I haven't modified my decks in a very long time.
So you had to buy Adventures with gold or money before but now when a new expansion comes out they put free Adventure-like single player stuff in it. This expansion has the Dungeon run and the last one has the ice crown citadel single player stuff.