I love this year's dragon-based cosmetic. The little extra the Dev's put in to have the dragon wings "flap" when you're airborne is amazing!
At least they do for warlock...not sure about the other classes.
Great little detail!
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The wings on both the Warlock and Titan sets do flap. Only the ones on the Hunter set don't. My guess is that it's because Hunters can't hover with their jump. Would have been nice if the ones on the Hunter set did flap, regardless of whether they can hover or not, and were extended out a bit more.