@Rhaevnn Xeno: 
I actually asked that question a while back, the person of random thoughts like I am. :-P

[quote=Shienvien]Would the light from the ???-character's runesword (or most other magical invocations of light) hurt vampires? Or, more generally, what in Reniam's case makes it so that, say, the light from a campfire wouldn't, but a sun's light would hurt a vampire?[/quote] 
[quote=Dark Jack]The light of the runesword would not harm vampires beyond simply blinding them the same as it would any other mortal creature. It is not even possible to reproduce the harmful effect of sunlight through magic (not yet, at least) [ ... ], the light hurts them simply because it is from the sun. Why? Because Rilon decided that it should be that way. He thought it would be fun.[/quote]