In the Senators' last four games, Erik Karlsson has cranked up his rate of production with three goals and three assists so that he's back to being a point-per-night player.
But in the last eight, you could have put his Norris Trophies on a piece of plywood at the blue line and they would have done just as good a job defending while Detroit's Dylan Larkin (twice) and Nashville's Roman Josi skated around him on their way to scoring.
They haven't been the only opponents to make Karlsson look like he's standing still this season, nor will they be the last.