Edit:
Looking at this chart it's god awful where defender stands and shouldn't be this way. The worst thing about the class that it's super doesn't do what it should do and that is protect the user as well as other super kill. A player should be able to rely on Ward of Dawn as shield that can trade with other supers.
It's the defensive class and super and it should have an equal K/D through its defense
-
Bungie make the bubbles a viable tool in PvP.