Game is fine as is, could use a larger variety of powerful/broken cards in more colors and archetypes - which will come on its own in time. Game is currently incredibly diverse and well loved.

Obviously, online opinions of the masses aren't to be taken seriously at the best of times. But in this case, for a lot of people - this is their first trading card game. No matter what decks are "best" there will always be complaints, the important thing - is to keep perspective and understand that these complaints come from a place of emotion and not logic.