Concept: “In honor of our sixth episode of Flail to the Face, we give you the Bone Specter, a class for when you want to be both a skeleton and a ghost.” 
Content: WTF is going on here? Sounds like a complex backstory...
Writing: Definitely not skeletal, but certainly transparent enough.
Art/design: “Sometimes you just have to take things at face value and move on.”
Usability: For when your undead character... un-dies. Again?