Mirror Image and SR


Rules Questions


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Me: Scorching Ray
Target: Mirror Images and SR

Do you roll against SR before determining if it targets an image, or after (in which case, only if it targets the caster, otherwise poofing images).


Spell Resistance before Mirror Image I'd say. Scorching ray is trying to hit the original and thus SR takes hold, then a roll for mirror image if the SR was bypassed.


Have to beat SR or the spell just fizzles and has no effect. Also note you can't specifically target images.


After.

Mirror Image is a spell effect being interacted with, not the Caster himself.

Similarly if you cast Wall of Force and have SR, someone Disintegrating your Wall doesn't need to check your SR either.


Rathendar wrote:

After.

Mirror Image is a spell effect being interacted with, not the Caster himself.

Similarly if you cast Wall of Force and have SR, someone Disintegrating your Wall doesn't need to check your SR either.

Wall of force doesn't have specific text like this:

Mirror Image wrote:
Whenever you are attacked or are the target of a spell that requires an attack roll, there is a possibility that the attack targets one of your images instead. If the attack is a hit, roll randomly to see whether the selected target is real or a figment. If it is a figment, the figment is destroyed. If the attack misses by 5 or less, one of your figments is destroyed by the near miss.

It has to Bypass SR first if it has to hit you first.


If the hit targets a figment, you were never the target for SR to come into play based on my reading of that same text.


Rathendar wrote:
If the hit targets a figment, you were never the target for SR to come into play based on my reading of that same text.

Spell Resistance text:
Spell resistance is a special defensive ability. If your spell is being resisted by a creature with spell resistance, you must make a caster level check (1d20 + caster level) at least equal to the creature's spell resistance for the spell to affect that creature. The defender's spell resistance is like an Armor Class against magical attacks. Include any adjustments to your caster level to this caster level check.

RAW If it does work like AC, but for spells, then SR has to be overcome first before even a hit can be made; then, and only then does a roll from mirror image get made as:

Mirror Image wrote:
If the attack is a hit, roll randomly to see whether the selected target is real or a figment.


It does not mention that it applies to your active spell effects at all in that text. I have read the sections, I have stated the conclusion i came to. You are free to have a different opinion, and you are welcome to play as you wish. I was sharing my opinion on the reading as well is all. I agree to disagree, it's not a debate you will persuade me on. I appreciate your stance however.


If you could specifically target the images I would agree with Rathendar, but as you can't I'm of the view you have to beat SR first.


Well I just found the last word on it,

SRD Successful Spell Resistance:

Spell resistance prevents a spell or a spell-like ability from affecting or harming the resistant creature, but it never removes a magical effect from another creature or negates a spell's effect on another creature. Spell resistance prevents a spell from disrupting another spell.
Against an ongoing spell that has already been cast, a failed check against spell resistance allows the resistant creature to ignore any effect the spell might have. The magic continues to affect others normally.

SR is First: Rules As Written


But does spell resistence come into play when you've actually targeted an image and not the Mirror-Image-caster? The wording on Mirror Image basically says you're declaring a target, but in actually may actually be targeting an image.


No, whilst you can hit an image, you can't target an image. You target the caster.


You CAN target an image. By doing so, you discover that the image is an invalid target for your spell, and that image is thereby disbelieved and destroyed.


mirror image wrote:
Whenever you are attacked or are the target of a spell that requires an attack roll, there is a possibility that the attack targets one of your images instead. If the attack is a hit, roll randomly to see whether the selected target is real or a figment. If it is a figment, the figment is destroyed. If the attack misses by 5 or less, one of your figments is destroyed by the near miss.

I will amend my statement to more accurately reflect the rules - you cannot choose to target an image. You target the subject of the spell first. If you hit the subject of the spell there is a chance to target an image instead. If you miss the subject of the spell by a narrow margin you destroy an image instead. You cannot in any way deliberately target an image itself.

Liberty's Edge

Hitting a single Mirror Image does not disrupt the Mirror Image spell because the remaining images persist.

RAW seems really unclear on this. The rule about disruption does suggest that SR may protect spells on a creature with SR, while Mirror Image suggesta that any attack that accidently hits an image will destroy that image including attacks that would not hurt the actual target.

I've marked this as a FAQ candidate.

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