<noinclude>{{Trail|Magic}}[[File:SR-book-Illusion11.png|thumb|right|Text of an Illusion spellbook]]</noinclude>

'''Illusion''' is one of the six schools of [[Lore:Magic|magic]]. It is similar to [[Lore:Alteration|Alteration]] magic in that it seeks to change the world around the caster so normal physical truths no longer hold, but while Alteration magic is bound by the laws of nature, Illusion magic is not. Its weakness comes from the fact that while Alteration affects the entire world, Illusion magic affects only the caster and the target.{{ref|name=ROF|{{Cite book|Reality & Other Falsehoods}}}} Illusion spells can change a target's visibility, produce or remove light, produce or remove noise, charm a creature, induce hatred in it or calm it down, enhance or remove a creature's courage, prevent a creature from seeing or moving, or allow the target to see even in total darkness. The ability to enforce the caster's will on a target is also now part of this school, despite having once been considered to be [[Lore:Conjuration|Conjuration]] magic.