I looks cool plus, I personally love firebombing bosses, it does some pretty considerable damage, the thing is, Heart of Praxic Fire has to come with high DIS, or it is no better than a chest with high DIS. Some would argue Sun Breakers are superior for damage output due to duration increase but I am able to put out about 5 extra grenades with mine which puts its damage output far above the sunbreakers. My favorite is the priest, he is easiest to trap with non stop nades and his HP melts considerably faster than what other supers can do to him. Me and some friends got bored and all radianced Atheon and covered the whole area with nades, it wasn't exactly effective, it took 3-4 teleports to do. But it was hilarious to lag the game out with so many solar grenades in the area.