Antimagic Field

Level & School: 8th-level Abjuration
Casting Time: 1 action
Range: Self (10-foot-radius sphere)
Components: V, S, M (a pinch of powdered iron or iron filings)
Duration: Concentration, up to 1 hour
Available To: Cleric, Wizard

A 10-foot-radius invisible sphere of antimagic surrounds you for the duration. The sphere is centered on you and moves with you.

The sphere suppresses magic within its area. Spells cannot be cast into or through the sphere, and magical effects do not function within it. The sphere is cut off from the magical energy that suffuses the multiverse.

Any active spell or other magical effect on a creature or object in the sphere is suppressed while that creature or object remains within it. If the suppressed effect has a duration, that duration continues to expire while the effect is suppressed. When the creature or object leaves the sphere, the effect resumes if its duration has not ended.

Areas created by spells or other magical effects are suppressed only where they overlap the sphere. The portion of a magical wall, cloud, flame, or similar effect that lies inside the sphere does not function. Any portion outside the sphere continues normally.

Magic items inside the sphere become nonmagical for as long as they remain there. Their properties and powers are suppressed, not dispelled. A magic weapon becomes an ordinary weapon. A protective item ceases to confer its benefit. A sentient magic item becomes inert. Artifacts are not automatically suppressed, though the DM may rule that some or all of an artifact’s lesser properties are impeded.

A creature or object summoned or created by magic temporarily disappears while in the sphere. Such a creature or object reappears once the suppression ends, usually in the space it previously occupied, or in the nearest unoccupied space if that space is no longer available.

A magical transformation affecting a creature is suppressed within the sphere. A creature under polymorph or a similar effect appears in its true form while inside the field.

Spells and magical effects such as dispel magic do not end Antimagic Field. The spell suppresses magic; it does not destroy it. Exceptionally powerful divine acts, artifacts, or unique supernatural forces may interact with the field differently at the DM’s discretion.

At Higher Levels

Antimagic Field has no additional effect when cast using a higher-level spell slot.

Why This Spell Is Dangerous in the World

Antimagic Field is dangerous because it makes magical superiority unstable. A ruler defended by relics, a wizard secured by layered wards, a temple protected by miracle-working treasures, or a fortress built around arcane barriers can all be reduced, in the critical moment, to ordinary material vulnerability.

Its existence reshapes trust. Courts must account for the possibility that enchanted defenses can be silenced. Mage orders must reckon with enemies trained not to outcast them, but to walk through their work and shut it down. Priesthoods must confront the unsettling question of whether a miracle denied passage is absent, resisted, or merely waiting beyond the veil.

The spell does not just threaten hostile magic. It threatens dependence on magic. In any realm where Antimagic Field is known, power can no longer assume that enchantment will always hold.

Best Uses

Breaking warded positions: Antimagic Field excels at crossing magically protected thresholds, suppressing defensive spells, and turning a secure magical space into a vulnerable physical one.

Neutralizing spell-reliant enemies: Archmages, summoned champions, magically protected elites, and shapechanged threats all become far easier to contain if they must fight within the sphere.

Suppressing unstable magical hazards: The spell can create a temporary window in which cursed objects, magical traps, possessed relics, or ongoing supernatural effects stop functioning long enough for others to intervene.

Exposing deception: Illusions, magical disguises, false forms, and enchanted concealments can all fail inside the field, making it a brutal tool for interrogation, judgment, and revelation.

Forcing mundane terms of conflict: In battles dominated by teleportation, magical flight, conjuration, or layered buffs, the spell can create a space where movement, steel, numbers, and terrain matter again.

Tactics

Antimagic Field is a positional spell, not a ranged dominance tool. Its power comes from where you carry it. Cast it when you intend to close distance, seize ground, or enter the one space where magic must stop functioning.

It is strongest in confined or decisive environments: vaults, ritual chambers, narrow bridges, corridors, summoning rooms, throne halls, and gatehouses. In such places, enemies cannot easily withdraw from the sphere without giving up the objective.

The caster must be chosen carefully. A character who remains dangerous without active magic makes the best bearer of the field. A heavily armored cleric, a disciplined battle-mage with strong mundane protection, or a front-line figure supported by nonmagical allies can exploit the spell far better than a fragile caster who depends on magical defenses to survive.

Coordinate with the party before using it. The spell is indiscriminate. It suppresses allied buffs, magical movement, enchanted gear, summoned support, and many escape options just as readily as enemy magic. Used carelessly, it can dismantle your side’s plan as efficiently as the enemy’s.

The ideal use is often simple: one character becomes the moving dead zone, and the rest of the party fights around that fact.

DM Notes

Describe the spell through subtraction. Illusions do not burst; they vanish. Floating objects fall. Sacred glow dies from a relic’s surface. A summoned creature is there one instant and gone the next. The emotional force of the spell lies in the sudden absence of everything supernatural.

Track the sphere precisely. This spell depends on boundaries, and many rulings will turn on whether a creature, object, or effect is fully inside, partly overlapping, or just beyond the edge. A marker, template, or visible radius on the table is worth using.

Remember that suppression is temporary. Antimagic Field does not automatically end spells or destroy enchantments unless a specific effect says otherwise. When the field passes, suppressed magic resumes if its duration remains. This keeps the spell powerful without turning it into a universal eraser.

To preserve encounter tension, let intelligent enemies respond intelligently. Spellcasters may retreat, separate the bearer from allies, rely on mundane guards, trigger nonmagical hazards, or force the fight into spaces where the field becomes inconvenient rather than decisive.

Good Combinations

• Forcecage: Trap enemies in a restricted space, then use Antimagic Field to deny many magical responses and force them to survive on whatever remains when supernatural options fail.
• Wall of Stone: Shape the battlefield with a lasting nonmagical barrier, then carry Antimagic Field into the key approach so enemies must engage without magical mobility or support.
• Silence: Together, these spells can devastate enemy casters by combining suppression of active magic with the practical denial of verbal spellcasting around the field’s edge.
• Maze: Remove one major threat from the battle, then use Antimagic Field to dismantle the magical advantages of everything left behind before that threat returns.
• Counterspell: Counterspell helps win the approach; Antimagic Field wins the space. Used together, they let a party deny immediate hostile casting and then lock the decisive area down completely.

Using This Spell in Your Game

Clerics often cast Antimagic Field as an act of stern correction. In their hands it can feel like divine refusal: a moment in which profane sorcery, false wonder, and unlawful supernatural intrusion are all brought low before higher order.

Wizards tend to regard it as one of the purest expressions of mastery. To conjure flame is impressive. To summon power is admirable. To deny magic itself is something colder, rarer, and more absolute. In many arcane traditions, the spell marks a practitioner who no longer merely uses the hidden laws of the world, but can impose terms upon them.

Warlocks and darker occultists may frame it differently. Their version may be understood as pact-silence, void pressure, or the moment when lesser powers are choked off by something older and less negotiable.

Different cultures judge it according to what they fear. In one realm it may be an inquisitor’s instrument. In another, a regulated emergency rite reserved for containment, exorcism, and magical disaster.

Spellcasting Culture and Worldbuilding Hooks

Any world in which Antimagic Field exists develops institutions around magical failure. Royal architects may build iron-bound chambers designed for negation-bearers to advance through. Great temples may reserve shielded crypts for relics that must occasionally be silenced to be handled safely. Arcane colleges may forbid students even to study the spell without supervision.

Orders devoted to magical law, relic containment, or anti-sorcerous warfare may train specialists whose sole purpose is to step into cursed or warded spaces and make them survivable for others. Such figures would be feared, respected, and never far from political suspicion.

The spell also creates ideological conflict. Some regard it as a holy protection against corruption and magical arrogance. Others see it as blasphemous, since it interrupts miracles, silences sacred objects, and subjects divine manifestation to mortal technique. In harsher realms, tyrants and inquisitors value it for an uglier reason: it ensures that when judgment falls, no hidden magic answers back.

Antimagic Field

This material is Open Game Content, and is licensed for public use under the terms of the Open Game License v1.0a.

Abjuration

Level Cleric 8, Magic 6, Protection 6, Sorcerer/Wizard 6
Components V, S, M/DF
Casting Time 1 standard action
Range 10 ft.
Area 10-ft.-radius emanation, centered on you
Duration 10 min./level (D)
Saving Throw None
Spell Resistance See text

An invisible barrier surrounds you and moves with you. The space within this barrier is impervious to most magical effects, including spells, spell-like abilities, and supernatural abilities. Likewise, it prevents the functioning of any magic items or spells within its confines.

An antimagic field suppresses any spell or magical effect used within, brought into, or cast into the area, but does not dispel it. Time spent within an antimagic field counts against the suppressed spell’s duration.

Summoned creatures of any type and incorporeal undead wink out if they enter an antimagic field. They reappear in the same spot once the field goes away. Time spent winked out counts normally against the duration of the conjuration that is maintaining the creature. If you cast antimagic field in an area occupied by a summoned creature that has Spell Resistance, you must make a caster level check (1d20 + caster level) against the creature’s Spell Resistance to make it wink out. (The effects of instantaneous conjurations are not affected by an antimagic field because the conjuration itself is no longer in effect, only its result.)

A normal creature can enter the area, as can normal missiles. Furthermore, while a magic sword does not function magically within the area, it is still a sword (and a masterwork sword at that). The spell has no effect on golems and other constructs that are imbued with magic during their creation process and are thereafter self-supporting (unless they have been summoned, in which case they are treated like any other summoned creatures). Elementals, corporeal undead, and outsiders are likewise unaffected unless summoned. These creatures’ spell-like or supernatural abilities, however, may be temporarily nullified by the field. Dispel magic does not remove the field.

Two or more antimagic fields sharing any of the same space have no effect on each other. Certain spells, such as Wall of Force, Prismatic sphere, and prismatic wall, remain unaffected by antimagic field (see the individual spell descriptions). Artifacts and deities are unaffected by mortal magic such as this.

Should a creature be larger than the area enclosed by the barrier, any part of it that lies outside the barrier is unaffected by the field.

Arcane Material Component A pinch of powdered iron or iron filings.