I can 100% agree with this. The elite ninjas here use a whirling ability that will proc 100+ damage in small 1-20 damage hits in a matter of 1 or 2 seconds. Skeletal Dragons also hit substantially harder than they do on OSI. You can see in this video a sampire doing Rooftop solo, and compare the damage taken from the Skeletal Dragons (0:23-2:00) and the damage taken from the elite ninjas (2:40-9:20) to the damage taken here, it's catastrophically different. This video is a couple of years old, so I can get on OSI and test out some encounters with these soon if needed.