Another issue with this event, which I just encountered, is that if the Forro event is up and the creatures are out and about because nobody is doing it, Zizel will engage every last one of them whilst still tossing out his concoctions. There was no way for the handful of us to manage both mechanics, especially as Forro's creatures can't just be killed, they have to be purged at 25% to break Zizel's obsession with shooting them.