It makes your voice
> surer, your gaze stronger and your determination unshakable but I
> don't think that your tongue starts to glow (though it could and that
> would make for an interesting affect negotiating with trolls....)
>
Sounds like Trickster magic mucking up an Issaries to me, or perhaps
a curse of Issaries on some deceptive silvertongued bastard!
CB