I stated in a tweet shortly after Evo was released, that it was an unfair advantage and will take years based on their current model to get all the cards evo’ed if you go by 1 evo card a month. So the he better option is to evo all the 109 cards at once. So everyone is on an even playing field.
What if it takes a year or longer for a player who uses a deck but never gets one of their cards evo’ed while others have their pick. Unfair!
Side topic… How has the HOG never gotten a Nerf in this game? Either increase it’s elixir cost by one or decrease its HP. It’s a very op card. There is a reason why it’s used so frequently and in many variations as it’s a beginners card that little thought is needed when used, based on its OP status that seems to be overlooked, unlike every other card in the game.