I heard that. I stumbled upon them while looking for undead!
Outsider works for me.
Pegasus stats: Str 18, Dex 15, Con 16, Int 10, Wis 13, Cha 13
They remind me a bit of the white hart from Dragon #343 as well.
White Hart: Str 20, Dex 17, Con 15, Int 12, Wis 10, Cha 18
Int for these fellas is High (13-14).
How about Str 19, Dex 16, Con 15, Int 14, Wis 13, Cha 16?
In a twist, we could have the cursed wounds work both for and against the phantasm. Just a thought.