I reworked some of it, for brevities sake I'll list the changes:

Appearence: You asked to get rid of the more obvious aspects of faeish qualities, so I did, still looks pretty uncanny however, but people can have that sort of quality in real life already without any connections with the fae, so I don't see any issue with maintaining the weird thin body and some elfin features given they already exist.

Shifter Appearence: No two distinct forms now, now his angelic form is basically him using illusions and glamour to make himself look better in the perspective of others, his true nature is the other form and people who are able to see past his trickery won't be fooled by this show.

Powers: The glamour spell is now - I always was - resistible, Strong willed characters can resist its alluring effects and maintain their mental integrity, but this causes them considerable strain. Powerful spellcasters can also work their way around it, some even having the ability to simply brush the effects aside as if nothing happened. Given the strong willed can resist it, its an unspoken fact that they could also resist his commands also, including acts of suicide and self mutilation, its just hard.

The mental assault spell can now be resisted by those with pain resistance, but that doesn't make them feel particularly coherent, but definitely enough that they could manage to distract him from casting and lead to a chink in his armour.

Other: I [b][b]'d.