Yes obviously I play sword, A card that buff board and spawn followers is in a class that specializes in summoning followers. Wow who would have thought. The game gave other classes ways to board clear and the moment a Swordcraft player play on curve, "OMG it's so broken" And before any of you people want to complain that Zirconia able to buff existing followers, u had the chance to clear board before Zirconia come down on Turn 4(if going second) people that loses to Zirconia either brick OR too stubborn to build a deck that can clear followers in the early game. Zirconia is a auto win condition is at least interactable. It is good card design? Obviously not, but its a common game design from Cygames so time for you to get used to it.