Yeah looks like a nova sorc/aura sorc with a little gimmick. I feel like the ctc nova is just for swag and probably useless. I do like the idea but it has no practical use imo.
Haha i mean, you're right. Its a thunderstorm aura sorc, which isnt exactly new but the ctc nova stuff has only been made possible since that recent d2r patch that fixed NHD.
I dont cast nova at all, the point is to be a passive sorc, and you're downplaying the ctc nova a bit, you can beat the game as a pacifist build and ctc lvl 5 nova is one of the best ways to do it.
Sometimes the ctc nova is the biggest source of damage actually, for example if you're in a high density tz like flayer jungle. You could cast up to 8 or 10 novas in under a second, so up to 10k dmg, where as dream pulses are only 3.7k every 1 second, so over twice as much dmg in that period of time. Any damage helps in a passive build.
You should watch this video which explains "double nova" better than i can, it's not just a gimmick... but also a bit gimmicky, as are most things "off-meta". Hard to find new builds and ways to play in a 25 year old game!
Watch this:
https://www.youtube.com/watch?v=mitJxV5LHBk&t=6sPM if you want to chat more about it