Believe it or not there is a full build here, first and the most important is that rockets freeze and its the same freeze that the supers have. whisper of bonds works when killing on the sparrow, making orbs for ACD0 charges. People meleeing you can sometimes get you killed so the ACD0 can help you survive and some times get the kill. Next is tectonic harvest to get frost armor for dr as your very much a glass cannon in the field. Whisper of time for the frost armor to last longer. Whisper of fissures to get multi kills or leave others one shot, its had the bad tendency to set your sparrow on fire if you shatter to close to yourself but its good to have anyway. Lastly Dimond lance is a bit of a throw away and just there for your team to use You can jump off if you want to use em, but you'll have more fun on the sparrow.
These build settings contain: