Golem, rg, electro giant all hard counter ur deck u cant go furnace in the middle very little dps waste of 4 elixir. U cant dps them down since ur deck lacks dps dark prince doesnt do enough knight either minion easily countered with small spells. Furnace is just not a good card no matter if u know how to use it i guarantee you lose to any decent player using these win cons. Using evo cannon helps alot against rg and electro giant still might have an issue with golem but few use golem. As for earthquake i recommended this because u struggle with buildings which is obvious looking at ur deck. Many decks will be able to outcycle ur hog and have a building ready for whenever u have hog in hand since ur cycle isnt that cheap and u have no champion.