Shadestep got a cool down and Graviton Forfeit was the only helmet Nightstalkers were wearing while rolling the Wombo Combo. Bungie doesn't want there to be only one way to run a subclass. And, what do you know, everyone was running it one way. Same reason Twilight Garrison got hit. That and both were a little [i]too[/i] mobile. Both Nightstalker and Defender saw their Spike Grenades have the same change. Tether is now more consistent. And like Defender, Nightstalker is a support class. So doing better than .9 is outstanding