The four triple attack omen spam really fucked me up. But other than that, the raid doesn't seem much harder to move in than the solo quest. With 5 other people, where the boss HP goes down faster and you don't get bombarded with the same omen ever other turn, it doesn't seem too bad. Some omens you can probably just tank. Like that 5 skill one during the light/dark phase didn't seem to hurt much when you guard.