A self-congratulatory truism in the hockey world is that the Stanley Cup is the hardest major trophy to win. This is literally true, insofar as 82 to 110 games of full-contact skating cause untold amounts of immediate suffering, opioid addiction, and premature death. It is also true in the intended sense, as the insular character, relatively small markets, and tight salary cap of the NHL all maintain something much closer to league-wide parity than other, more popular North American sports can muster. Amidst this parity, a team has to be really, really good to win, even once. A team has to be phenomenal to win twice.…