I managed to cross the initial chasm using Verden's leap and Intervention, but after that I was completely stuck. It's impossible to tell where to go, since the terrain all looks the same, and I can't even distinguish the plants from the ground by sight. I think to progress I needed to pick out which grey rock I could jump on from the many grey rocks I could not jump on.
I think this could be pretty good, if I could get a little further. The giant list of spells is definitely enticing. I'm not rating for now since I got stuck, but I might revisit later.