I received the legendary sparrow from defeating crota on hard. I was super pumped because I thought it would have skulls and bones on it and a green flame because all of the other crota's end gear is like that. But nope, it is the exact same thing as the time breaker from VOG with a worse paint job. I mean seriously though Bungie, don't over extend yourselves on this reward! I am extremely disappointed in this, you didn't even try! all you did was change the two colors from red and gold to black and army green that is not only lazy on your part but honestly unacceptable.
Edit: Beat it twice now. Still disappointed!