Wraith's possess the same common traits of all undead.
Immunity to mind affecting spells. Opposite effects concerning Heal and Inflict spells. Subject to Turn undead.
The Wraith also has the supernateral ability drain Constitution. On a successful hit a Wraith's target must make a Fortitude save or lose 1d8 points of Constitution.
Wraiths are also Incorporeal creatures which means that even when an opponent makes a successful hit on them, there is a 50% chance it is nullified by the insubstantial nature of these horrors. Ghost Touch weapons ignore this quality.
