There are some mistakes I'm seeing.PRD wrote:Channeling energy causes a burst that affects all creatures of one type (either undead or living) in a 30-foot radius centered on the cleric.When you channel energy, you decide what type of creature to target, either Living or Undead. You do not choose to either heal or harm; that distinction is determined by your desired target compared to the type of energy you channel. So lets say the Anti-Paladin chooses to target Living creatures. He channels negative energy which normally damages Living creatures. Now NEA doesn't actually cause you to count as Undead for targeting purposes; it only flips what the energy does to you. So Negative energy targeted at you heals while Positive energy harms. But it still needs to be targeted at a Living creature because the Dhampir is alive, not undead. So lets say there is a Dhampir and three creatures without NEA. Our Anti-Paladin channels negative against Living creatures. This will heal the Dhampir, but harm the other three creatures. Then, he channels negative against Undead creatures. Neither the Dhampir nor the other three are affected because none of them are Undead. That is the problem OP has. The solution is selective channel for the Anti-Paladin. He can exclude the horse and just heal the Dhampir.
The dhampir is treated as an undead creature for purposes of resolving positive and negative energy. That means when the channeler channels to heal undead creatures with negative energy, the dhampir is affected because he is treated as undead for its effect.
Channeling to harm the living doesn't heal the dhampir, channeling to heal the undead does.
By the same token, the dhampir is also not harmed when positive energy is channeled by a cleric to heal the living, because the channel is not being used to harm the undead. The dhampir is, however, harmed if the cleric channels positive energy to harm the undead.
While the dhampir is not undead, it is treated as undead for how the effects are resolved. The effects are resolved to either heal or harm against certain targets.
Negative Energy Affinity (Ex) The creature is alive but is healed by negative energy and harmed by positive energy, as if it were an undead creature. Format negative energy affinity; Location Defensive Abilities
The effect of the channeled energy (positive or negative) is resolved as though the dhampir were an undead creature, from start to finish.
Yes, the description of channeling says the good cleric chooses whether to heal living or harm undead with the use of its ability, and the evil cleric chooses whether to heal undead or harm living with the use of its ability, and does say "Channeling energy causes a burst that affects all creatures of one type (either undead or living) in a 30-foot radius centered on the cleric." However, the description of the Negative Energy Affinity indicates that creatures with that trait (which includes dhampirs) are healed and harmed as if they were undead creatures.
The line you are drawing is that you're saying it isn't an undead creature for the cleric's determination of which type to affect with its channeling, but is treated as one for the resolution of the same effect. You're saying it is treated as not undead to determine if it is affected, but that it is treated as undead to determine how it is affected. The thing is, how it is affected is from start-to-finish of the effect. When the good cleric (or paladin) channels positive energy to heal the living, it is treated as an undead creature so is not healed. When the cleric channels positive energy to harm the undead, it is treated as an undead creature so is harmed. When the evil cleric (or antipaladin) channels negative energy to harm the living, it is not affected, but when the evil cleric (or antipaladin) channels negative energy to heal the undead, it is affected. Start to finish, for the resolution of the channel energy effect, "as if it were an undead creature."
Text of channel energy provided below for reference.
A good cleric (or one who worships a good deity) channels positive energy and can choose to deal damage to undead creatures or to heal living creatures. An evil cleric (or one who worships an evil deity) channels negative energy and can choose to deal damage to living creatures or to heal undead creatures. A neutral cleric who worships a neutral deity (or one who is not devoted to a particular deity) must choose whether she channels positive or negative energy. Once this choice is made, it cannot be reversed. This decision also determines whether the cleric casts spontaneous cure or inflict spells (see spontaneous casting).
Channeling energy causes a burst that affects all creatures of one type (either undead or living) in a 30-foot radius centered on the cleric. The amount of damage dealt or healed is equal to 1d6 points of damage plus 1d6 points of damage for every two cleric levels beyond 1st (2d6 at 3rd, 3d6 at 5th, and so on). Creatures that take damage from channeled energy receive a Will save to halve the damage. The DC of this save is equal to 10 + 1/2 the cleric's level + the cleric's Charisma modifier. Creatures healed by channeled energy cannot exceed their maximum hit point total—all excess healing is lost. A cleric may channel energy a number of times per day equal to 3 + her Charisma modifier. This is a standard action that does not provoke an attack of opportunity. A cleric can choose whether or not to include herself in this effect. A cleric must be able to present her holy symbol to use this ability.