In fact, it is pretty clear what you get for your 20$:
So another cheeky try of a pay2win-game like Hearthstone... Big naynay in my eyes, especially considering how well Valve is doing...
Don't get me wrong, I do play games with a pay2win factor, like Dragonball Dokkan Battle on my phone and have already spent more than I ever thought I would, but Dokkan Battle is singleplayer only. Hearthstone/Artifact automatically becomes not only pay2win, but even pay2play at some point. This is what I heard and saw on Youtube without having played Hearthstone myself. (Mainly because I think there are better options out there like Infinity Wars on Steam).