Hi
What happens if Unhallow is tied to Dispel Magic ?
a) How often does the Unhallow area try to dispel? Once? Every round they're inside? Each time they leave and reenter the area?
b) Is every PC affected? Only the first one?
c) Are carried magic items targeted as well? I know usually they count as "attended", but Dispel Magic can target magic items specifically.
d) If c) is true, all of them? Just one per PC at random?
e) Or would magic items only be targeted if the PC in question has no actual spell effect active right now?
Well it would function as dispel magic only, not greater dispel. Meaning it would function as a targeted dispel. Because of how unhallow functions it seems like it would target a creature only, not a spell or object.
As to whether it works only once, or can affect multiple creatures at the same time and all your other questions...well frankly I have no idea.
A) How often does the Unhallowed are try to dispel.
I would think that the spell would take effect once upon entering the area. If you leave the area, and come back, then you are subject to the spell effecting you another time. So only effecting you once, but every time you enter the area.
B) If every PC affected?
You can choose between =
1) Applies to all creatures
2) Creatures that share your faith.
3) Creatures that share your alignment.
4) Creatures that adhere to another faith.
5) Creatures that adhere to a different alignment.
( ask your DM, how he interprets number 4 & 5, as i could see it being used broadly = any faith or alignment not your own; or used narrowly = pick one faith or alignment for it to apply to. ) As DM, i could rule ether way as written in PHB.
Every PC who enter the area on the hallow/unhallowed spell, who is subject to the effect, as chosen by the caster, at the time the spell was placed.
C) Are carried magic items targeted as well? This i am not sure on. (Ask your DM ).
If i am the DM, i would restricted it to being used for only one effect; decided when the hallow/unhallowed spell is first cast.
1) One ongoing spell that been cast on a creature or object.
2) To temporarily suppress the magical abilities of a magic item.
3) To Counter another spell-caster spell.
Question D = If option 2 is chosen in question C. Then i would say Ask you DM. As DM, i could see myself ruling ether way. Depending on what kind of game i would be playing (high magic/low magic), how often this come up, if this becomes a game breaker or just once in a blue moon annoying.
Question E = see question C.
.......
Most of the spell for hallow/unhallowed have a Persistence effect, but dispel magic is more a cast on demand, so i can see were your question are coming from. Different DM, could rule differently on this question, and i could even see myself flipping back and forth on once per entry vs once per round. Depending on what kind of game i was running.
Anyway wish you good luck on this one.
The unhallow spell says that the attached "spell effect lasts for 1 year and functions throughout the entire site, regardless of it's normal duration or area of effect".
So while I see the argument about it targeting "creatures", in my view that portion of the text is simply a way to exempt certain spells from dispellation which are being utilized by specific creatures based on their alignment.
That said, it is also my view that, since dispel magic can only be used as a targeted dispel or counterspell and in this case affects all targets in the area, each valid target of that spell is targeted by a CL check to dispell it individually upon entering the field, instead of one check per character.
If the dispel check succeeds, the item cannot function within that area, and in the case of magic items is suppressed for an additional 1d4 rounds after leaving the area.
If the check fails the item may function normally, at least for a time, within the field. As for how long a time, I would say a new dispell check every round. After all, the skull only has a CL of 11, vs a DC of 11 + the CL of the effect or item, meaning that some effects simply will not be effectively dispelled without increasing the CL of the dark skull in some way, especially if it was cast by a character who managed some sort of +X CL via items (an ioun stone comes to mind) or feats (spell focus anyone).
Other ways exist to get around this as well, such as using your own dark skulls, as 2 unhallow effects cannot overlap.
The issue I have with only afhttp://paizo.com/threads/rzs2pqtw?Darkskull-and-Dispel-Magic#6ng one upon entering is that this means that should characters A and B both enter an unhallowed area with both a CL 2 and a CL 20 effect on each of them the following could occur:
Character A's CL 2 effect is dispelled, but their CL 20 effect continues to function unhindered so long as they do not leave the area. No big deal here. (Chances are that it wouldn't be dispelled before the encounter was over anyways as it requires a nat 20 roll [5% chance].)
But character B's CL 20 is miraculously dispelled and only has his CL 2 effect to keep him alive (whicn survived only because of a natural 1). Furthermore, if both are provided by magic items, that means that he just has to stand there for 1d4 rounds to get it back and his CL 2 effect is never affected.
Now, while I have no problem with another dispell check in 1d4 rounds to keep either of these effects down, that seems to make this effect extremely underpowered IMO.
(copied from a parallel thread)