So what Im understanding from the previous posts is that the "positive energy" being discharged by the healing spell isn't what is harming the undead, its the clerics hand...if that were the case why would the cleric have to use a spell at all to harm the undead if indeed the "Energy does not cause wounds, clerics do."
that doesn't make a whole lot of sense to me.......
It isn't the Cleric that is harming the undead, it's the positive energy channeled from his deity in the form of a spell that is harming the undead...much the same as the positve energy channeled to TURN the undead is. Does this mean that now incorporeal undead get a 50% chance to resist turning?
"The PC is corporeal. To damage the creature he has to touch it. The source of the attack (his hand) is corporeal. He is subject to the 50% miss chance."
The description of the spell does not state that the character has to touch the target, only that he/she must succeed at a touch attack against the target. Does the cleric actually have to touch the target, or do they merely have to get close enough to allow the discharge to arc to the target, seems to me that if they had to actually touch the target they would have to roll a regular unarmed melee attack to hit, after all if the source of the damage is the clerics hand why wouldn't armor block it, as it would a mace or sword wielded against it from a corporeal source?
Incorporeal undead are an effective tool in a D.M.'s arsenal, even more so with the 3rd edition rules, I believe the Cleric's ability to use healing spell against them is a balancing issue that can help keep the game from quickly turning into a bloodbath when an incorporeal undead of half the players level's comes in and rips them apart because the players cant hit it.
The limited number of spells the P.C Cleric can cast keeps the undead from being a joke, but the spells keep the undead from being a threat above their intended value.