Before I got back into running voidwalker, I used to be a self-rez warlock. Mainly because I wanted to focus purely on practicing with weapons. Running fireborn allowed me to get into risky situations where, if I couldn't revive myself, there was a possibility I would fail the mission (Nightfall, weekly, etc.). It also gave me extreme self confidence in my abilities, because instead of practicing dancing around with blades or aiming my titan slam, for around 15 days, I only used guns. Since then, I've been able to play more skillfully while also running the destructive power of a nova bomb.