Hallucinatory Terrain


Skills, Feats, Equipment & Spells


I've got some questions about how this spell can be used.

Hallucinatory Terrain wrote:

You create an illusion that causes natural terrain to look, sound, feel, and smell like a different kind of terrain. This doesn’t disguise any structures or creatures in the area.

Any creature that touches the illusion or uses the Seek action to examine it can attempt to disbelieve your illusion.

So... let's say you cast Hallucinatory Terrain over a pond (or maybe quicksand), and make it look like solid ground.

Does this work? Is "pond" or "quicksand" a type of terrain? Does it count as a structure?

The hallucinatory terrain feels like normal terrain. Can a creature walk on it with a pond underneath? This would give them a save against the illusion, so would they only fall into the water if they successfully disbelieved the illusion?

I like the idea of making a clever pit trap out of this.

Could you use Hallucinatory Terrain to make illusory difficult terrain? Or cover up difficult terrain with an illusion of a nice flat field, then walk over it?

How would you guys rule this?


Only manmade stuff counts as a structure. So a pit trap is a structure and would not be concealed, but a natural ravine or sinkhole is terrain and would be.

It's roughly 3 times the area of wall of stone, but takes 10 minutes to cast instead of 1 round, has a duration of only one day instead of permanent, and can be disbelieved. So I feel using it to cover up / negate difficult terrain, or even make a "solid" walkway over ravines for those who believe the illusion, are acceptable uses. The illusory ground won't feel very solid as the spell states it does if people just fall through, right? The illusionist herself won't be able to use her own bridge though, because she will automatically disbelieve her own illusions, unless she can somehow induce herself to forget casting the illusion and what the area looked like previously.

By the same token it could be used to make difficult terrain.

Note that while it will conceal damaging terrain, it says nothing about negating such features. So someone taking heat damage from proximity to lava while in an illusory tundra should get a large bonus to their save to disbelieve the illusion.

Liberty's Edge

I have no idea what they're trying to say by "Normal Terrain" as there is no such thing defined in the Rules, but my best guess here is that they MEAN to say any non-magical terrain because I honestly don't see how a Level 4 Spell could be so weak as to only allow the Caster to alter a terrain that is perfectly normal and safe, to appear DIFFERENTLY but also still appear totally normal and safe.

I believe the RAI here is that any REAL (Not Magically created/supported) Terrain may have Hallucinatory Terrain cast on it to appear as Terrain defined by the Caster (I want it to look like a giant Steamvent/Geyser is blowing off here to hide the Camp while we rest)

Similarly I think that using it to appear as Non-Dangerous/Difficult Terrain (Your Quicksand example) is also a perfectly legitimate use. The affected Creatures would of course get a Save if they get near any of the actual hazards, but at that point it may be too late. For your Pit example, I'd offer the Creature a Save once they're adjacent to the Illusion IF entering it would prove dangerous. If they fail, oops Reflex Save time for the baddie.


Pathfinder Pathfinder Accessories Subscriber; Pathfinder Roleplaying Game Superscriber
Themetricsystem wrote:
I have no idea what they're trying to say by "Normal Terrain" as there is no such thing defined in the Rules, but [...]

You misread, it's "Natural", not "Normal". So basically, terrain that is there naturally.

BTW, I like the idea of surrounding the camp with illusions of geysers!
And yeah, I feel like this is a very potent spell. I'd like to play with it.

Liberty's Edge

Elfteiroh wrote:
Themetricsystem wrote:
I have no idea what they're trying to say by "Normal Terrain" as there is no such thing defined in the Rules, but [...]

You misread, it's "Natural", not "Normal". So basically, terrain that is there naturally.

BTW, I like the idea of surrounding the camp with illusions of geysers!
And yeah, I feel like this is a very potent spell. I'd like to play with it.

I see, so maybe it's simply trying to denote that this spell simply doesn't function on man-made terrain like Villages, Roads, Farms, Buildings, Man-Made Holes, Obstacles, or ANY Outer Plane etc, but instead on Fields, Forest, Rivers, Lakes, Magma, Quickstand, NATUALLY OCCURING Pits/Sinkholes, Caves etc

Thanks Elf!

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