Okay, I'll do this slowly so everybody understands it
A) Dispel Magic can be used to dispel an ongoing spell with a targeted dispel.
B) The issue here is whether spells "attended" (i.e. cast on a person, or on a object attended by a person) can be the only target of a targeted Dispel Magic.
[BTW, By "immunity" in my previous post I meant immunity against being targeted as the only target of Dispel Magic, not a general immunity to Dispel Magic. This has been changed in the previous post]
C) This has not been discussed by the Sage, he only confirmed that attended objects (and their spells) are vulnerable to a targeted Dispel Magic on the creature holding them. He did not in any way discuss whether this limited their suitability as single targets of a targeted Dispel Magic.
Everyone still with me ? Okay, let's move on to the conclusion !
The possible rulings in this situation are:
1. "Attended" spells; i.e. spells cast on a person or on an object attended on a person cannot be singled out as the only target of a targeted Dispel Magic. This is not supported by the spell description, but is supported by similarities to the rules for attended objects. This ruling was proposed by Caliban and supported by kreynolds.
2. There is no difference between spells cast on a person, on an attended object, and on a general area. All can be the target of a targeted Dispel Magic, but the caster must have some knowledge of the spell. This is how the spell description is written. This ruling was proposed by Pielorinho and supported by me.
It's as simple as that. Both rulings are reasonable, and (IMHO) within the parameters of the rules as of now. I still think this is a prime example of a situation where the Sage should be consulted.
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I'll round of with some answers to kreynolds:
This was sloppy wording from my side, has been clarified above.
But what about other spells. Take e.g. an illusion. Do you need to notice it before dispelling it ? (I guess so) Do you have to disbelieve it before dispelling it ? (Probably not, but not really defined). Do you need to detect the area it covers ? (probably at least partly). There are lots of issues here as well, but these were not the topic of my post.
See the initial post for why you would want to dispel just a single spell.
No it's not. Read the post by Pielorinho again. You don't want to dispel all the buff spells on the fighter just to get rid of that Hold Person.
But my point is that they are not three lemons. It's an orange, a lemon and a nectarine. And because the sage states that all lemons are yellow does not make all oranges yellow, even though they are both citrus fruits.
If you got nothing better to say I suggest you keep your mouth shut.
.Ziggy

A) Dispel Magic can be used to dispel an ongoing spell with a targeted dispel.
B) The issue here is whether spells "attended" (i.e. cast on a person, or on a object attended by a person) can be the only target of a targeted Dispel Magic.
[BTW, By "immunity" in my previous post I meant immunity against being targeted as the only target of Dispel Magic, not a general immunity to Dispel Magic. This has been changed in the previous post]
C) This has not been discussed by the Sage, he only confirmed that attended objects (and their spells) are vulnerable to a targeted Dispel Magic on the creature holding them. He did not in any way discuss whether this limited their suitability as single targets of a targeted Dispel Magic.
Everyone still with me ? Okay, let's move on to the conclusion !
The possible rulings in this situation are:
1. "Attended" spells; i.e. spells cast on a person or on an object attended on a person cannot be singled out as the only target of a targeted Dispel Magic. This is not supported by the spell description, but is supported by similarities to the rules for attended objects. This ruling was proposed by Caliban and supported by kreynolds.
2. There is no difference between spells cast on a person, on an attended object, and on a general area. All can be the target of a targeted Dispel Magic, but the caster must have some knowledge of the spell. This is how the spell description is written. This ruling was proposed by Pielorinho and supported by me.
It's as simple as that. Both rulings are reasonable, and (IMHO) within the parameters of the rules as of now. I still think this is a prime example of a situation where the Sage should be consulted.
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I'll round of with some answers to kreynolds:
What is this "immune" thing you keep mentioning? Nothing on a creature is immune to dispel magic, even if dispel magic is targeting their mage armor, it will effect everything on the creature. The only reason that "targeting a spell" is mentioned in the description of Dispel Magic is so that it is made clear that you can target and attempt to dispel and ongoing spell, such as stinking cloud.
This was sloppy wording from my side, has been clarified above.
Why would you need any information about a Stinking Cloud spell? You can see the horrid looking puff of smoke filling a huge area. That's information enough. You see the cloud, target it, bang
But what about other spells. Take e.g. an illusion. Do you need to notice it before dispelling it ? (I guess so) Do you have to disbelieve it before dispelling it ? (Probably not, but not really defined). Do you need to detect the area it covers ? (probably at least partly). There are lots of issues here as well, but these were not the topic of my post.
Why would you bother targeting a creature's sword or helm when it's just as easy to just target the creature? Answer: You don't. You just target the creature. Why? There is no point in targeting the helm or sword. Why? Because you get no bonus for targeting the creature and all his gear as a whole, nor do you get a penalty for specifically targeting his sword. Thus, targeting an item held by a creature is pointless, as the creature is considered part of the item, and the item is considered part of the creature. Why? Because the item is "attended".
See the initial post for why you would want to dispel just a single spell.
You're right. But like I said, doing so is absolutely pointless. However, you don't need a hard and fast rule in a book to figure this out. It's pretty simple enough.
No it's not. Read the post by Pielorinho again. You don't want to dispel all the buff spells on the fighter just to get rid of that Hold Person.
That's a really thin argument. If you have three lemons lined up in front of you, and the sage points to the one in the middle and says "That's a lemon." then walks away, do you just naturally assume the other two are not lemons because the sage didn't say they were? That's what you're trying to do with the sage reply above.
But my point is that they are not three lemons. It's an orange, a lemon and a nectarine. And because the sage states that all lemons are yellow does not make all oranges yellow, even though they are both citrus fruits.
It has already been clarified. Reread the sage reply about 50 more times.
I understand that you're confused, yes.
If you got nothing better to say I suggest you keep your mouth shut.
.Ziggy