Fan Casting Styx in Skylanders: Down to Earth DLC - Hunt for the Elements

A member of the Element Switchers. They're a ghostly grim reaper has the ability to switch between the Magic and Dark elements, and joined the Element Switchers after they abandoned their former job as a ferrier of souls due to the corruption of their job's higher ranks. Their group of heroes has guarded the Isle of Elementals similarly to how the Skylanders guard the rest of the Skylands, and they happily teams up with them to stop the Titans.