In almost every situation I can think of, Stormfist would be better than Sellistrix. But yes, for big trashpulls like you have in SO, it's reasonable to use an aoe set. (But you should still switch back to a single target set for the boss fights).Is the Sellistrix monster set worth running in AOE situations for stam users? It's took too looks promising but I've never really tired it.