So I just got the skull, and I'm very split on whether or not I should use it as the exotic for my Voidwalker armor set amd ditch my Voidfang. The thing is, is that I do use my grenades very often (the Voidfang gives me an extra axion bolt and I spawn with grenades charged) BUT the Skull makes me harder to kill when I use Nova bomb (which I hardly use in PVP and PVE due to both my axion bolts picking up the slack and because I usually get shot out of the air in PVP) and it increases the power of my energy drain effects. I'm more metro then anything in this game and I'm always changing my playstyle to accomodate weapons and armor that look cool, but since I love both the Skull and the Voidfang, I'm at a loss, so I'm going to focus on which one is more tactically sound. Any advice?