What CDPR basically did with this game was to change cards so that the game felt different, they did it multiple times. So instead of printing new cards to make the meta fresh, they change them which is super stupid. Gwent is dead.
My current thoughts on HC as I am trying to see if it is at all viable is this;
This new Gwent feels like throwing baby out with the bathwater and realizing they threw the baby out, and replacing it with a rubber baby doll instead. There was nothing wrong with the original Gwent, all they needed to do was limit some cards, tweak some archetypes. Instead they overhauled it all for no apparent reason what so ever and the games interesting qualities have lost it's zip. You went from making some interesting and cool combos in Gwent, some annoying and needed balance Nekkers. To this, you can only boost, damage, but there's none of that snappy combo movement. And the matches feel sluggish. I hate how the leader cards just stand around the whole match, making obnoxious noises and having no personality. In fact they have made Leader cards so boring that the flat still cards they use to be represented as have more personality than these moving around, "ha ha" "hey hey" looking at you Flav. The deck building is needlessly complicated, there was nothing wrong with the old system and what makes the new deckbuilding even worse is the freezing bug that hasn't been patched out. I dislike everything about HC, it has no personality, it's not Gwent, it feels something alien to it. And I am trying really hard, getting back into Gwent to understand HC, and while I'm use to it. It isn't fun.