It's Swashbuckling, Dark Fantasy and a bit of Exalted tossed all into one.
So you have a semi-post apoc previous world setting, destroyed continents, living spells, basically semi-sentient spells that never end and keep doing what they were casted to do, so a Cloud Kill will try to float to you and kill everything.
You have the Dragonmarked, the noble (or ignoble) houses that are considered royalty and many other dark themes.
It also has a few Deities, a lot, but far from the Deity Creep that plagued Forgotten Realms. It also tends to lump them in three to five categories as a lot of deities all go under a single banner of "The Sovereign Host", there is also the Silver Flame and of course the latter religions are splinter. ^^