On the one hand, it makes the basic cards seem like really basic. Like, my friend says this game is pay to win, and I can see why(He hasn't put a dime into the game but struggles doing ranked against people who have blackrock sets, explorer sets, dr. balanced).
I'm thinking, 'Well that's every tcg ever'.
However, the silver lining is that they've created new metas that entirely work. You can create a mage mech deck, or a priest mech deck, or a priest dragon deck, and it's seemingly viable. Going forward, if they keep adding mechanics that are diverse and don't make everything before it irrelevant, than this game will be in a good position despite the fact that the introductory cards are weak.