what happens when a summoned monster casts anti-magic field?


Rules Questions


the rules for AMF states a summoned creature poofs out in it and than returns when the AMF stops occupying the space. the AMF is tied to the summoned monster.....so what happens? are we stuck with an infinite loops of it poofing and resummoning in its turn? there a ruling somewhere the a caster is unaffected by that part of AMF?


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I am not aware of any RAW that would deal with this particular corner case and would invoke Rule 0

Personally, I would leave the antimagic field up with the summoned creature trapped inside, unable to manifest.

Eventually the duration will run out on either the summoned creature or the AMF.

Sovereign Court

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Ah, the Schrödinger's Summoned Monster problem. I like to think that the monster exists with the anti-magic field active until the GM looks at it, upon which the GM has a seizure due to the rapid flickering of the summon into and out of existence.


Quote:
When the spell that summoned a creature ends and the creature disappears, all the spells it has cast expire.

The anti magic field persists until either it or the summon monster spell expires. Spells cast by summons last until the summon spell ends, which may be longer then the time the creature is around.


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It causes a strobelight-like effect as the monster and field flicker in and out of reality and everyone within a mile is blinded for 1d4 hours.


soooooo, a quasi-real anti-magic field that's stationary and cant be targeted by enemies as the attached creature is both there and not there?


They’re just being silly for fun. The anti magic field persists throughout, because the summon monster spell is still active. The continued existence of the summon monster creature is unnecessary.


Melkiador wrote:
They’re just being silly for fun. The anti magic field persists throughout, because the summon monster spell is still active. The continued existence of the summon monster creature is unnecessary.

This. I thought the blind comment would seal the idea that it was a joke ;)


Melkiador wrote:
They’re just being silly for fun. The anti magic field persists throughout, because the summon monster spell is still active. The continued existence of the summon monster creature is unnecessary.

the AMF is attached to the summoned monster, no? so it's literally blinking in and out of existence constantly


kinderschlager wrote:
Melkiador wrote:
They’re just being silly for fun. The anti magic field persists throughout, because the summon monster spell is still active. The continued existence of the summon monster creature is unnecessary.
the AMF is attached to the summoned monster, no? so it's literally blinking in and out of existence constantly

No. I already quoted the rule above. The AMF is tied to the summoning spell, not the creature. The creature could die and the AMF would still keep going until one of the two spells expired.


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Antimagic field is centered on the caster. If the caster isn't present, does the field remain?

I'm inclined to say no, but have no rules backup for that.


Melkiador wrote:
kinderschlager wrote:
Melkiador wrote:
They’re just being silly for fun. The anti magic field persists throughout, because the summon monster spell is still active. The continued existence of the summon monster creature is unnecessary.
the AMF is attached to the summoned monster, no? so it's literally blinking in and out of existence constantly
No. I already quoted the rule above. The AMF is tied to the summoning spell, not the creature. The creature could die and the AMF would still keep going until one of the two spells expired.

the AMF description has it tied to the casting creature, no? 10-ft.-radius emanation, centered on you


The funny thing is that spells centered on a creature, aren't actually centered on a creature.

Quote:
The point of origin of a spell is always a grid intersection.

The grid intersection is still there, and so is the antimagic field.


What summons get AMF?


Melkiador wrote:

The funny thing is that spells centered on a creature, aren't actually centered on a creature.

Quote:
The point of origin of a spell is always a grid intersection.
The grid intersection is still there, and so is the antimagic field.

I think it is intended that both apply but one is conditional on the other (an if/then statement) -- so it is centered on a creature, and you then choose a grid intersection from that creature's grid/s to calculate the area of effect.

If the creature is no longer there, it no longer covers any grid/s, and so there are no longer any applicable grid intersections.
Likewise if the creature moves, the effect moves with it -- the grid intersection is directly tied to the current location creature. So the position of no grid/s (i.e. creature is gone), means there are no available grid intersections for the effect.


Rather, since the caster hasn’t moved to a new grid, the emanation stays at the grid it was at until the caster moves or the spell expires.


Melkiador wrote:
Rather, since the caster hasn’t moved to a new grid, the emanation stays at the grid it was at until the caster moves or the spell expires.

Doesn't a summoned creature return to its home plane when the magic expires or is dispelled? E.g. the summoned devil returns to Hell from whence it came.

See "Summoning" CRB p210 "creature is instantly sent back to where it came from".

So its grid, and hence the grid intersection of its active spells, should travel with it?


The spell doesn’t end and hasn’t expired though. I already quoted the applicable rule in my first post.


^Yes, but since the Antimagic Field is tied to the casting creature (ignoring the possibility of Imbue Arrow cheese), when the creature is returned to it's home plane, so is the Antimagic Field.


UnArcaneElection wrote:

^Yes, but since the Antimagic Field is tied to the casting creature (ignoring the possibility of Imbue Arrow cheese), when the creature is returned to it's home plane, so is the Antimagic Field.

Hmm. Maybe in that case, a field would follow the summon. But being within the field doesn’t actually return the creature to its home plane. The spell has not been dispelled or expired.


Melkiador wrote:
Hmm. Maybe in that case, a field would follow the summon. But being within the field doesn’t actually return the creature to its home plane. The spell has not been dispelled or expired.

That's a fair point.

The Antimagic spell has some unusual wording, like:
An antimagic field suppresses any spell or magical effect used within, brought into, or cast into the area, but does not dispel it.
Summoned creatures of any type wink out if they enter an antimagic field. They reappear in the same spot once the field goes away.

I think the original question is impossible to answer because "wink out" is not defined anywhere(?).

My assumption was that they returned (temporarily) to their home plane but could reappear in the same spot -- in the same way a Blink spell moves you back and forth between two different planes.

But again, it's not defined anywhere, so "wink out" could also mean the creature is still present but not physically manifest -- trapped in limbo, neither here nor there, so to speak.

However it is rather complicated to assume a "winked out" summoned creature's auras and radius spell effects centered on the creature still function where they extend beyond the radius of the Antimagic field.


Since the text of AMF states: "if they enter", then nothing happens to the summon, since they did not "enter".

/cevah


UnArcaneElection wrote:

^Yes, but since the Antimagic Field is tied to the casting creature (ignoring the possibility of Imbue Arrow cheese), when the creature is returned to it's home plane, so is the Antimagic Field.

AMF does not return the summoned creature to its home plane.

If any part of a summoned creature lies outside an AMF, that part of the summoned creature is unaffected.

You won’t get a partial creature if the creature itself cast the AMF, but the creature is not being sent anywhere. It is just not manifest withinn the AMF.


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It gains benefits and penalties of the Blink spell.


Volkard Abendroth wrote:
If any part of a summoned creature lies outside an AMF, that part of the summoned creature is unaffected.

Really? So the spell doesn't make gargantuan creatures completely wink out if it only covers some of their squares?

So if the summoned dinosaur's tail is outside the AMF can it just back up to completely reappear?
And can it back up or move at all if its feet are winked out?
If not, can the immobile (not winked out) tail still make tail attacks?
And as its head and eyes are winked out, should you treat it as blind for those tail attacks?

In short, that all seems very complicated!


Jeven wrote:
In short, that all seems very complicated!

The AMF rules have not been well updated over through the different versions of the game.


Jeven wrote:
Volkard Abendroth wrote:
If any part of a summoned creature lies outside an AMF, that part of the summoned creature is unaffected.

Really? So the spell doesn't make gargantuan creatures completely wink out if it only covers some of their squares?

So if the summoned dinosaur's tail is outside the AMF can it just back up to completely reappear?
And can it back up or move at all if its feet are winked out?
If not, can the immobile (not winked out) tail still make tail attacks?
And as its head and eyes are winked out, should you treat it as blind for those tail attacks?

In short, that all seems very complicated!

Check out this FAQ:

FAQ wrote:

Big creatures and centered effects: If a Large or larger creature has up an effect “centered on you,” does that mean that sometimes the emanation doesn’t even affect the creature’s entire space, let alone anything else?

No, when such a creature uses an emanation or burst with the text “centered on you,” treat the creature’s entire space as the spell’s point of origin, and measure the spell’s area or effect from the edges of the creature’s space. For instance, an antimagic field cast by a great wyrm red dragon would extend 10 feet beyond her 30x30 foot space, for a total of a 50 foot diameter.

The antimagic-field is an emanation, centered on you. It is even specified as the spell in the FAQ. Therefore, the FAQ means that the entire creature is within the field.

/cevah


Cevah wrote:
Jeven wrote:
Volkard Abendroth wrote:
If any part of a summoned creature lies outside an AMF, that part of the summoned creature is unaffected.

Really? So the spell doesn't make gargantuan creatures completely wink out if it only covers some of their squares?

So if the summoned dinosaur's tail is outside the AMF can it just back up to completely reappear?
And can it back up or move at all if its feet are winked out?
If not, can the immobile (not winked out) tail still make tail attacks?
And as its head and eyes are winked out, should you treat it as blind for those tail attacks?

In short, that all seems very complicated!

Check out this FAQ:

FAQ wrote:

Big creatures and centered effects: If a Large or larger creature has up an effect “centered on you,” does that mean that sometimes the emanation doesn’t even affect the creature’s entire space, let alone anything else?

No, when such a creature uses an emanation or burst with the text “centered on you,” treat the creature’s entire space as the spell’s point of origin, and measure the spell’s area or effect from the edges of the creature’s space. For instance, an antimagic field cast by a great wyrm red dragon would extend 10 feet beyond her 30x30 foot space, for a total of a 50 foot diameter.

The antimagic-field is an emanation, centered on you. It is even specified as the spell in the FAQ. Therefore, the FAQ means that the entire creature is within the field.

/cevah

As I said, it won't be an issue if the AMF is on the summoned creature itself.

But it does demonstrate that the creature is not sent "elsewhere." A summoned creature affected by an AMF is not manifest (at least, not the part in the AMF), but has not gone anywhere.


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This is a fun one! The rules just don't cover it.

Because of that, I'll go with the following, which has absolutely no rules backup: They exist exactly half the time, so they behave much like they're affected by blink, save that there's no way to avoid the 50% miss chance. Additionally, the summoned creature can only take a standard action (much like slow). Finally, the antimagic field itself only functions 50% of the time, though it still disrupts spellcasting within the area completely*. Ongoing spell effects have a 50% chance of being manifest at any particular moment, magic items have only a 50% chance of working when activated, and attacks are resolved using enhancement bonuses and other magical effects on weapons, armor, and so on 50% of the time.

Edit: Or, if that's too much of a pain, I'll just run that the antimagic field goes with the creature to wherever "winked out" summoned creatures go when they "wink out", and thus prevents it from "winking in" again. Yeah, that's probably a simpler and easier approach, and it involves less wholesale rules invention.

*I run the "you can't cast spells while within an antimagic field" interpretation, as I believe that was the intent of the spell.

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