I recently made a Blova sorc. I used a Shako on the head, as a griffon's has eluded me. It was a fun build, but on players8, the Nova was very underwhelming. My damage for Nova was around 1783. I wish I would have found this guide when I done my Blova, as it is excellent, especially the images of damage and the YouTube videos.
I do have a +3 Nova Ormus that I thought about using, but I used an upped SoVM with a 15 resist all jewel. I have considered doing a Nova/Fireball build using the Ormus I mentioned and an Eschuta's, both with pretty good additional damage in both trees. With so many fire immunes, I just don't know how fun a players8 game would be trying to widdle them down with a weakass Nova. If I could find a Griffons and socket it with a lightning facet I might try that build. After playing a Barb for the first time, I am not going to make another character that can't handle everything at P8.