An antimagic field spell or effect suppresses magic, but it doesn’t dispel that magic. Once a magical effect is no longer affected by antimagic, the magic returns. Spells that still have part of their duration left begin functioning again, magic items are once again useful, and so forth. Two antimagic areas in the same place don’t cancel each other, nor do they stack. An antimagic effect interacts with several game elements in different ways.
Constructs, elementals, outsiders, and corporeal undead still function in an antimagic area. Their special abilities are affected by the antimagic as detailed below.
A big creature whose space is partially within an antimagic area can choose to attack from a square not within the area, thereby suffering no adverse effects from the antimagic. Its attacks and abilities are affected by the antimagic if it attacks into the antimagic area or uses an ability on a foe within the antimagic area.
Summoned creatures of any type disappear if they enter an antimagic area. Incorporeal creatures do the same. These creatures reappear in the same spot once the antimagic effect goes away, unless they were summoned by an effect whose duration has expired—see Spells, below.
Magic items that have continuous effects don’t function in an antimagic area, but their effects aren’t canceled. This includes the enhancement bonus
provided by magic armaments. In an antimagic area, for instance, the contents of a bag of holding are unavailable, but neither spill out nor disappear forever.
A magic weapon used to attack from inside an anti magic area, or one used to attack a creature inside an antimagic area, gains none of the benefi ts of its magic properties. Those properties are suppressed because of the weapon’s interaction with the antimagic area. If neither the attacker nor the target is inside the antimagic area, the attack resolves normally with reference to the weapon’s magic properties.
No supernatural ability or spell-like ability works in an antimagic area. Their effects are affected like spells (see below). Extraordinary abilities work normally.
Spells don’t function in an antimagic area, but an antimagic area doesn’t block line of effect. If a spell’s point of origin is inside an antimagic area, that spell is entirely suppressed. When a spell’s point of origin is located outside an antimagic area, but part of that spell’s area overlaps the antimagic area, that spell’s effect is suppressed where the two areas overlap. Time elapsed within an antimagic area still counts against a spell’s duration.
If an instantaneous spell is entirely suppressed, that spell is effectively canceled. (It’s suppressed, and its duration instantaneously expires.) An instantaneous area spell is only entirely suppressed and effectively canceled if its point of origin is within the antimagic area. Otherwise it works like any other area spell that has a point of origin outside the antimagic area—only where its area overlaps the antimagic area is its effect is suppressed (and effectively canceled).
A wall of force, prismatic wall, or prismatic sphere isn’t affected by antimagic. Break enchantment, dispel magic, and greater dispel magic spells don’t dispel antimagic. Mordenkainen’s disjunction has a 1% chance per caster level of destroying an antimagic field. If the antimagic field survives the disjunction, no items within it are disjoined.