For the ghost character, is there any way those ghost-like traits could be active on his arrival? I guess he'd default have to be a unicorn for it to work (and I'd rather he be a pegasus), but maybe his magic got messed up on transfer or something because he is just that bad at things and he unknowingly stuck himself with a curse. I'd probably nerf a lot of the ghost-like stuff anyway except for the phasing through things and the floating, since if nobody can see or hear him it'd make roleplay pretty hard. Mostly what I'm worried about is stuff like, y'know, breathing. Stuff that would make him flip out completely.

Alternately, would there be another non-pony creature he could be that would allow him to retain his not-living status? Obviously not a Windigo, but something else along those spirit-y lines?