I Kicked my Hearthstone Addiction; Progession Obsession is a fallible human trait that many corporations take advantage. It takes a strong will to overcome the temptations. Although, I did allow myself to get involved at the start.
This game had me hooked until it got stagnant in the free version. When you get far enough in it, you start to realize that you need to pay to win. It's not completely obvious though.