Well, is wraith's con drain an energy drain? if it is, then what other types of energy drain is out there besides negative energy drain... Within the description of the wraith on Piazos' website http://paizo.com/pathfinderRPG/prd/monsters/wraith.html the link for Constitution drain refers to http://paizo.com/pathfinderRPG/prd/monsters/universalMonsterRules.html#_abi lity-damage-and-drain if thats the case then death ward would work, no?