Broken formats aren't fun formats—but fair formats aren't necessarily fun formats, either. It's a necessary rather than a sufficient condition.
"Ah, the age-old conundrum. Defenders of a game are too blind to see it's broken, and critics are too idiotic to see that it isn't." - Brian McCormick
Creator of the Multiverse database for custom sets, the Magic Turing machine (proving Magic Turing-complete) and the random Magic card generator.