So, back to the existential question, if you have a deck that runs reasonably well, do you dilute it's overall effectiveness to beat certain encounters? I've got a deck that plays pretty well, but can't beat Hoggarth because he negates my Champion Ability (target action with cost 2 or less...) and all his troops are difficult to remove. Fissuresmith would probably solve most of my problems, but would reduce the number of actions in the deck making my Skarns and Reactor Bots less effective everywhere else.
Take the near autoloss vs. Hoggarth or take random losses everywhere else because of inefficiency?
"Winning with terrormill is not fun? Try losing with it"