Hearthpwn

I actually stopped playing BG after they introduced the Tavern Pass. Maybe there is still hope. I actually think that every card game, where you invest time in your collection is addicting. But that's different towards a slot machine-like BG, where you actually can not collect stuff. 

Everything blinks and makes funny sounds, you can roll to get something better, funny comments by Bob that keep you addicted. It actually uses similar mechanics. I like playing it very much, and I also think that it is really addicting, even more than Hearthstone itself.