this set is sitting at a lower proc rate than Selenes (arguably the best stamdps set) while doing less than half the damage. its around ~1400 dps if you proc at 100% of the time every time is up which is not the case. am sorry but that is plain weak for a monster set bonus passive. I get that its AOE. but thats literally nothing.
Selenes the best stamdps monster set is fairly outdamaged by Maw of infernal. magicka set and that one has more than double the proc rate.