I've mained defender for over a year now. The only thing I'd like to see changed is for them to get a more viable grenade for PvE. The best way for this to happen would be to make the suppression grenade prevent certain enemy abilities such as vex/captain teleports, hobgoblin solar shields, ogre enrages, taken acolyte mini ogre face laser, cursed thrall explosions, ect. Also, either Armamentarium needs to refill grenades on spawn, or void fangs needs to not. Either or.