Unsouled, and the Cradle series as a whole, is described as something called martial arts fantasy. The magic system has defined levels of skill, with each skill level gaining distinct abilities and possessing unique attributes. It's not a design that I generally prefer, but it worked well in Unsouled. Which matters, because Unsouled is not necessarily the kind of book that you read for the compelling characters or political drama. You read it for the vivid magical fights.
A lot of very strange things can, and do, happen on a world that is flat, and is carried on the backs of four elephants perched upon the shell of the great turtle A'Tuan. Terry Pratchett's world and stories seem, on the surface, to be plainly fun. And they are that. Lighthearted and amusing, his stories don't feel heavy, but despite their facade, they in many cases convey unexpected significance. The well-meaning Watch Captain Vimes does just that as he investigates a dwarfish murder.