Artifact is, for better and worse, shaping up to be a very Valve card game in that it’s a clever, complex re-imagining of DOTA 2—complete with lanes and heroes—but it’s also heavily tied into a real-money marketplace. In fact, there’s currently no way to earn new cards without spending at least a pinch of your…
Source: Kotaku – Valve Says It Will Reduce Artifact’s Hidden Costs, Following Fan Complaints