The first time playing through I sort of speed ran through on my titan and skipped a few cutscenes. When going through the second time I hit the sequence where Xol "drags you down" and thought there's something missing here. You just sort of pop out of the snow like a daisy (Mulan ftw on that one). That section would have been the perfect time to 1.) Add a fourth sub-class that triggered by you being dragged too far into the darkness or one that is linked to Rasputin (such as Ice since its the DLCs theme) 2.) Add in new sub-class nodes acquired from the fragment since that's how we got our light back. It feels like they just flat cut content between us fading to black and falling down to when we pop up. There's no build-up, no reasoning, we just randomly show back up like nothing happened. Our diamond of subclasses is missing a piece, when will we see it if ever? This would have been the best time to unlock a fourth because we're connecting with the highest power aside from the Traveller and The Darkness in the Destiny Universe as a whole. The only thing that would be better to get a power from would be the Ahamkara but I have my doubts about seeing real ones of them this go around.