I'm going to be running a campaign with a Dhampir player. They have:
Negative Energy Affinity: Though a living creature, a dhampir reacts to positive and negative energy as if it were undead—positive energy harms it, while negative energy heals it.
Additionally, the type of the Dhampir race is explicitly not undead, but humanoid(dhampir). Thus, I would describe them as "living, but heals like undead".
My thoughts: If the spells use positive/negative energy, their effects are reversed for living creatures with NEA. However, the spells make no mention of positive/negative energy. My gut says that's simply an omission, as they seem like the spiritual replacements of 3.5's (Cure/Inflict) Minor Wounds, which definitely channel positive energy.
Any opposing thoughts, "Words of God", or compelling arguments?