Magic:Illusion

Schools : Abjuration | Conjuration | Divination | Enchantment | Evocation | Illusion | Necromancy | Transmutation

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Illusion spells alter perception, the most common of which is the ability to go invisible.

Illusion spells deceive the senses or minds of others. They cause people to see things that are not there, not see things that are there, hear phantom noises, or remember things that never happened. Illusions come in five types: figments, glamers, patterns, phantasms, and shadows.

Prohibited School: Enchantment

Spells: Blur, Color Spray, Continual Flame, Displacement, Ghostly Visage, Improved Invisibility, Invisibility,
Invisibility Sphere, Phantasmal Killer, Shadow Shield, Silence, Weird 

Figment

A figment spell creates a false sensation. Those who perceive the figment perceive the same thing, not their own slightly different versions of the figment. (It is not a personalized mental impression.) Figments cannot make something seem to be something else. A figment that includes audible effects cannot duplicate intelligible speech unless the spell description specifically says it can. If intelligible speech is possible, it must be in a language the character can speak. If the character tries to duplicate a language the character cannot speak, the image produces gibberish. Likewise, the character cannot make a visual copy of something unless the character knows what it looks like.

Because figments and glamers (see below) are unreal, they cannot produce real effects the way that other types of illusions can. They cannot cause damage to objects or creatures, support weight, provide nutrition, illuminate darkness, or provide protection from the elements. Consequently, these spells are useful for confounding or delaying foes, but useless for attacking them directly.

Glamer

A glamer spell changes a subject's sensory qualities, making it look, feel, taste, smell, or sound like something else, or even seem to disappear.

Spells: Blur, Displacement, Improved Invisibility, Invisibility, Invisibility Sphere, Silence  

Pattern

Like a figment, a pattern spell creates an image that others can see, but a pattern also affects the minds of those who see it or are caught in it. All patterns are mind-affecting spells.

Spells: Color Spray 

Phantasm

A phantasm spell creates a mental image that usually only the caster and the subject (or subjects) of the spell can perceive. This impression is totally in the minds of the subjects. It is a personalized mental impression. (It's all in their heads and not a fake picture or something that they actually see.) Third parties viewing or studying the scene don't notice the phantasm at all. All phantasms are mind-affecting spells.

Spells: Phantasmal Killer, Weird 

Shadow

A shadow spell creates something that is partially real (quasi-real). The caster weaves it from extradimensional energies. Such illusions can have real effects. If a creature takes damage from a shadow illusion, that damage is real.

Saving Throws and Illusions (Disbelief): Creatures encountering an illusion effect usually do not receive saving throws to recognize it as illusory until they study it carefully or interact with it in some fashion.

A successful saving throw against an illusion reveals it to be false, but a figment or phantasm remains as a translucent outline.

A failed saving throw indicates that a character fails to notice something is amiss. A character faced with incontrovertible proof that an illusion isn't real needs no saving throw. If any viewer successfully disbelieves an illusion and communicates this fact to other viewers, each such viewer gains a saving throw with a +4 bonus.