Indeed, the lewdness is very real between Sarse and Ann. =P I'm in no rush - fall semester finals are next week for me - and from what YOLF has let me know, there's going to be something involving Law's car. :3c
It should be noted that Than'Sanel doesn't have an issue with Black mages, just those that use that magic for evil. He would also likely associate Sarse with White - being the color of 99% of angels in Magic - and Red, the color of freedom/choice.
Less of an actual ability and more of an association that brings comfort to a displaced MtG character. That and he's kind of dabbled in all five colors due to Elementals, so he has a "feel" for each one.