Board Thread:Destiny Forum/@comment-69.228.33.19-20140721002858/@comment-71.108.140.201-20140721195904

The Darkness, at this point, sounds a lot like the Flood from Halo in multiple aspects. I'm fairly sure that the Vex and the Darkness are linked far beyond the basic connection, but as you said, all enemies are linked, so I suppose all enemies want the Traveler for the same reason.

Also, yes, all guardians have powers, but only the Awakened were given physical changes. I include the Warlocks in this because they study the changes.