Can Phantasmal Force knock and hold someone prone?

NautArch 03/22/2016. 3 answers, 3.668 views
dnd-5e spells

Spell language states:

you create a phantasmal object, creature, or other visible phenomenon of your choice that is no larger than a 10-foot cube and that is perceivable only to the target for the duration. This spell has no effect on undead or constructs. The phantasm includes sound, temperature, and other stimuli, also evident only to the creature...While a target is affected by the spell, the target treats the phantasm as if it were real. The target rationalizes any illogical outcomes from interacting with the phantasm...An affected target is so convinced of the phantasm’s reality that it can even take damage from the illusion. A phantasm created to appear as a creature can attack the target. Similarly, a phantasm created to appear as fire, a pool of acid, or lava can burn the target. Each round on your turn, the phantasm can deal 1d6 psychic damage to the target if it is in the phantasm’s area or within 5 feet of the phantasm, provided that the illusion is of a creature or hazard that could logically deal damage, such as by attacking. The target perceives the damage as a type appropriate to the illusion.

So, let's say i create phantasmal red hot chains that come out of the ground, gripping each limb and dragging him down. If the target fails it's intelligence save, would it now be prone and taking 1d6 damage?

1 NautArch 03/23/2016
I'm not sure if this should go in the question body or here, but it seems like both answers here are legitimate and are purely an interpretation of how a DM wants to treat illusions. Are they a bad trip where you fully believe, and your body therefore does too? Then Lino is right. Are they convincing, but not that much? Then Ceribia is correct. I think that both can be used, but at discretion of DM and maybe as a way to reward extremely clever illusions and not just spamming.
Lino Frank Ciaralli 03/24/2016
I honestly think the key word is in the part where it says.. treats the illusion as real. Which means if it thinks it gets shoved, it treats the illusion as something shoving it so it falls backwards.

3 Answers

Lino Frank Ciaralli 03/23/2016.


Disclaimer: All instances of real/reality used in this answer are with respect to the target thinking they're being affected. Phantasmal Force does not have the capability of actually creating something tangible, only to appear to be tangible to the afflicted target.

I've emphasized the important bit in the spell.

While a target is affected by the spell, the target treats the phantasm as if it were real.

Obviously this speaks to the reality of the spell.

A phantasm created to appear as a creature can attack the target. Similarly, a phantasm created to appear as fire, a pool of acid, or lava can burn the target.

That part details that whatever you describe can function as it normally would if it were real.

An affected target is so convinced of the phantasm’s reality that it can even take damage from the illusion.

And that part reinforces it all over again.

The phantasm includes sound, temperature, and other stimuli, also evident only to the creature.

That's the part where the illusion actually feels real to the affected target. This means that the chains, for all intents and purposes, are real to the target. Up to and including touch.

Obviously the writers couldn't outline literally every single illusion you can conceivably cast, so you have to extrapolate a bit. The three quoted parts above clearly demonstrate that the phantasm, for all intents and purposes, functions in whatever manner you describe as if it were real.

The balance is built in with the damage caused by the spell. It doesn't really hurt that bad at a meager 1d6, so using it as a means of crowd control is a far more effective and creative use.

So what can you do with this spell?

Well, you can't create things that are actually real, so you couldn't get a creature to cross a bridge no matter how hard it tried. It would simply keep falling and chalking it up to earthquakes or something.

However, in my opinion, if the creature is capable of performing the action without an external force acting on it, like being restrained by hot chains, then that is definitely within the bounds of the spell. It requires no contradiction and no actual force because the creature will act as if it is restrained.

This is reinforced by the last sentence of the spell:

The target perceives the damage as a type appropriate to the illusion.

This statement means, quite clearly, that the affected target is perceiving the pain of being afflicted by whatever illusion you cast. That, coupled with all the statements in the spell that treat the illusion as if it were real, and the stimuli accompanying the illusion, make it so that the illusion for all practical purposes, counts as real for the target, and the target alone.

NautArch 03/22/2016
So basically what it comes down to is if the recipient believes something is happening to it, it is. Probably get a minimum of one free round before it settles in and actually investigates :)
5 Alexis Wilke 03/23/2016
@NautArch, the damage is psychic meaning that it all happens in the brain of the target... so thinking that he's being burned by the restrains will not actually create any burn on the limbs. But the target sees burns there up until the point it succeeds on its Intelligence check.
tzxAzrael 07/19/2016
Adding to what @AlexisWilke said, if the target believes he is being pulled to the ground and restrained, then he will lay down on the ground and not move. Not because he is incapable of being moved, but because he has lost the awareness of his ability to move. In an extreme case, he might even attempt to fight off allies that come to assist/move him. This sounds like it would be rather funny to watch, actually...
NautArch 05/30/2017
Resurrecting this...Crawford just gave an interesting ruling:

Ceribia 04/25/2017.

No, phantasmal illusion can't knock or hold someone prone

The target rationalizes any illogical outcomes from interacting with the phantasm

The objects created by the phantasm are still illusions so they will not actually restrain/bind/grapple/whatever other status you want to use to hold them prone.

Say, for example, you created chains to bind the target. To the target these chains appear totally real, they can see them, they can feel the metal, they can see they are totally bound. But then the target tries to move. They strain mightily against their chains and.... their movement is totally unimpeded. The spell is still working so the target envisions it as bursting the chains, or the chains crumbling, or any other way as long as it matches up with the reality that they can in fact move. The chains are only an illusion so when the target tries to move.... they move. They wouldn't be taking damage unless there is a logical reason the chain could hurt them.

Another example would be a phantasmal flaming wall that appears over the prone target. The wall being made of fire is a good incentive for the target to stay prone and avoid being burnt. However they could choose to stand up if they wished and move through the wall. It would still cause them damage (1d6 as noted in the spell) either way.

For a final example let's say you created an illusionary creature to knock the target prone. When the creature tried to push the target the target would notice they are not actually knocked down. They would rationalize it and assume the creature missed, that they pushed the creature back, or some other way of explaining why it didn't work. They would continue taking damage as noted in the spell.

1 SevenSidedDie♦ 03/23/2016
@LinoFrankCiaralli As you say, you have your own answer already. Put any additional reasoning or arguments into your answer, not the comments here. Stop starting fights in the comments on competing answers.

Tumin 03/23/2016.

No, a character cannot be knocked prone or restrained by Phantasmal Force.

There is no text in the spell description that states the affected creature can be the subject of any mechanical conditions. What is stated is that it treats the illusion as real despite any contradiction, which will be rationalized away. Spells are restricted to doing exactly what they are described as being able to do.

Contradictions such as being able to see an ally through a wall are rationalized away. Being able to hear despite a fog horn blasting is rationalized away. Being able to move freely despite being engulfed by red hot chains is rationalized away. Being able to charge cage bars and pass through them is rationalized away.

Admittedly odd scenarios arise from this, such as a creature refusing to attack a real creature that it believes it can't see, while mechanically having vision of it. Rationalizing this contradiction is left as an exercise for the reader.

NautArch 03/23/2016
While I'm not disagreeing with you (see comment in my original question), there can't be text in an illusion spell that accommodates for everything that can be thought of when developing an illusion. Nowhere does it say that someone may flee a major illusion so that it works like Fear, but it isn't unreasonable to create an illusion that does just that.
1 Tumin 03/23/2016
I agree about the open ended nature of illusions; but I think the person in control of the creature affected by the illusion has agency to react appropriately as their character. A major illusion cannot impose the fear condition; the person in control of the affected creature decides how their character responds. This is all my RAW interpretation, not how I would insist anyone play at the table.
Protonflux 11/16/2016
Excellent answer. The key point being that NO CONDITION is imposed on the target, merely that the target will do it's best to act as if the illusion were real.
LegendaryDude 02/21/2017
@NautArch Actually, I think the best place for that is in another (possibly self-)answer. - Download Hi-Res Songs

1 The Chainsmokers

Beach House flac

The Chainsmokers. 2018. Writer: Andrew Taggart.
2 (G)I-DLE


(G)I-DLE. 2018. Writer: Riot Music Team;Harloe.
3 Anne-Marie

Rewrite The Stars flac

Anne-Marie. 2018. Writer: Benj Pasek;Justin Paul.
4 Ariana Grande

​Thank U, Next flac

Ariana Grande. 2018. Writer: Crazy Mike;Scootie;Victoria Monét;Tayla Parx;TBHits;Ariana Grande.
5 Diplo

Close To Me flac

Diplo. 2018. Writer: Ellie Goulding;Savan Kotecha;Peter Svensson;Ilya;Swae Lee;Diplo.

Waste It On Me flac

BTS. 2018. Writer: Steve Aoki;Jeff Halavacs;Ryan Ogren;Michael Gazzo;Nate Cyphert;Sean Foreman;RM.
7 Clean Bandit

Baby flac

Clean Bandit. 2018. Writer: Jack Patterson;Kamille;Jason Evigan;Matthew Knott;Marina;Luis Fonsi.
8 Imagine Dragons

Bad Liar flac

Imagine Dragons. 2018. Writer: Jorgen Odegard;Daniel Platzman;Ben McKee;Wayne Sermon;Aja Volkman;Dan Reynolds.
9 BlackPink

Kiss And Make Up flac

BlackPink. 2018. Writer: Soke;Kny Factory;Billboard;Chelcee Grimes;Teddy Park;Marc Vincent;Dua Lipa.
10 Nicki Minaj

No Candle No Light flac

Nicki Minaj. 2018. Writer: Denisia “Blu June” Andrews;Kathryn Ostenberg;Brittany "Chi" Coney;Brian Lee;TJ Routon;Tushar Apte;ZAYN;Nicki Minaj.
11 Rita Ora

Cashmere flac

Rita Ora. 2018. Writer: Sean Douglas;Lindy Robbins.
12 Backstreet Boys

Chances flac

Backstreet Boys. 2018.
13 Brooks

Limbo flac

Brooks. 2018.
14 Rita Ora

Velvet Rope flac

Rita Ora. 2018.
15 Fitz And The Tantrums

HandClap flac

Fitz And The Tantrums. 2017. Writer: Fitz And The Tantrums;Eric Frederic;Sam Hollander.
16 Little Mix

Woman Like Me flac

Little Mix. 2018. Writer: Nicki Minaj;Steve Mac;Ed Sheeran;Jess Glynne.
17 Cher Lloyd

None Of My Business flac

Cher Lloyd. 2018. Writer: ​iamBADDLUCK;Alexsej Vlasenko;Kate Morgan;Henrik Meinke;Jonas Kalisch;Jeremy Chacon.
18 Billie Eilish

When The Party's Over flac

Billie Eilish. 2018. Writer: Billie Eilish;FINNEAS.
19 Kelly Clarkson

Never Enough flac

Kelly Clarkson. 2018. Writer: Benj Pasek;Justin Paul.
20 Lil Pump

Arms Around You flac

Lil Pump. 2018. Writer: Rio Santana;Lil Pump;Edgar Barrera;Mally Mall;Jon Fx;Skrillex;Maluma;Swae Lee;XXXTENTACION.

Related questions

Hot questions


Popular Tags