Some stores would be able to survive selling snacks and board games, but many would not
They come in 10 solid colors, offering ample choices for the consumer
If 5% of people update their decks and a deck shoots up to the 6th-most-built deck when people are still building with Commander 2016 commanders and the new commanders from Amonkhet and no one is really buying Conspiracy 2, thats a big effect
As long as Pathbreaker Ibex can attack, it will end a majority of Commander games on the spot
Nothing prevents its owner from venturing into that dungeon again if another spell or ability instructs them to, though they would have to start from the topmost room again
So while every now and then you will get the rare experience of a well balanced hand on both players ends', most of the time is spent just hoping you will pull an energy card and a worthwhile Pokemon and also hoping your opponent will too