If you threw a range of grenades into a group then autorifled them it would work. It's also 50% of the sunsingers super so if they did get nerfed the super would lose effectiveness. I love fusions too much to run firebolt, I used to run firebolt but I like knowing that I'm never going to lose a close range engagement, I'm at least coming away with a draw if I'm packing a fusion. Changed over from warlock to another guardian and it took me a while to used to not hovering high up around corners with angel to avoid nades and shotgun rushers. No one ever expects you to be 20ft above them waiting with a shotgun