Insanity
Some spells stun, charm, or terrify for a few heartbeats. This one breaks the victim’s grasp on the world itself, leaving thought trapped in an endless maze of false choices, fractured perceptions, and actions that can no longer be trusted.
Rules authority: this panel is a SpiralWorlds 5.5e-compatible conversion. There is no current official SRD 5.2.1 Insanity spell entry, so this version preserves the spell’s classic role without presenting it as official current rules.
You shatter the target’s ability to keep a stable hold on reality. The target must make a Wisdom saving throw. On a failed save, the creature becomes afflicted with enduring magical derangement.
While afflicted, the creature behaves using the same turn-by-turn behaviour rules as Confusion. This effect does not require Concentration and does not end at the close of combat. The creature repeats the saving throw at the end of each Long Rest, ending the effect on a success.
Remove Curse does not end this spell. Greater Restoration , Heal , or Wish end it immediately.
Design note: this conversion keeps the spell’s historic identity as a single-target, long-lasting magical collapse of reason while using the modern Confusion behaviour framework to keep play fast and legible at the table.
The affected creature suffers a continuous Confusion effect. Although the spell’s listed duration is instantaneous, the resulting confusion has no fixed time limit and continues until the creature is restored by one of the permitted cures below.
Remove Curse does not remove Insanity. Greater Restoration , Heal , Limited Wish , Miracle , or Wish can restore the creature.
PF1e play note: use the Pathfinder 1e Confusion behaviour table, not the D&D 3.5 version. That difference matters in play.
The affected creature suffers a continuous Confusion effect. Although the spell’s listed duration is instantaneous, the resulting confusion has no fixed time limit and continues until the creature is restored by one of the permitted cures below.
Remove Curse does not remove Insanity. Greater Restoration , Heal , Limited Wish , Miracle , or Wish can restore the creature.
3.5e play note: use the D&D 3.5 Confusion behaviour table. Do not silently swap in the Pathfinder version.
Common Rulings
How long does Insanity last?
It can last indefinitely. In the legacy rules the spell is instantaneous, but the continuous Confusion it creates has no ordinary expiry in rounds, minutes, hours, or days. It remains until an allowed restorative effect cures the creature.
Does Remove Curse end Insanity?
No. In the legacy rules, Remove Curse explicitly does not remove the effect, and the SpiralWorlds conversion preserves that identity.
Can Dispel Magic end it?
Normally no. The spell’s duration is instantaneous, so once it has taken hold there is no ongoing spell duration for Dispel Magic to peel away.
Is it just permanent Confusion?
That is the simplest way to think about it. Insanity delegates its moment-to-moment behaviour to Confusion , but makes the effect long-lasting and much harder to cure.
Why does the Confusion table matter?
Because Pathfinder 1e and D&D 3.5 do not resolve Confusion in exactly the same way. When Insanity appears in play, use the table native to the edition you are running.
What cures it?
The classic cures are Greater Restoration , Heal, Limited Wish , Miracle , or Wish. The 5.5e-compatible conversion narrows that to Greater Restoration , Heal, or Wish.
When is it worth preparing?
When you need to break a single dangerous target for the long term: an enemy court wizard, a cult prophet, a war captain, or a prisoner too dangerous to trust with ordinary confinement.
Using Insanity in Play
Break the leader, not the line
Insanity is strongest when aimed at the one creature holding a plan together. A disciplined force can survive wounds; it often collapses when its commander can no longer distinguish allies, enemies, and imagined threats.
A prison spell without chains
This spell is brutal, but it is also precise. Tyrants, inquisitors, and secret police value it because it can render a prisoner harmless without killing them, while healers and clerics fear it for exactly the same reason.
Best after the save has been softened
If the target has already been exhausted, frightened, distracted, or stripped of magical defences, Insanity becomes far more reliable. It is a finishing spell for a mental duel, not a casual opener.
Historical & Mythical Context
By 1454, learned medicine across much of Europe had inherited a long tradition of studying disturbances of reason, imagination, and memory through late classical and medieval natural philosophy. Texts associated with Avicenna’s Canon of Medicine helped shape how scholars, physicians, and university-trained readers classified altered mental states, even when they lacked any magical cause.
That matters for a fantasy spell like Insanity. In-world, it is not simply “madness” as a vague horror label. It is a deliberate arcane assault on judgement and perception, something a healer, physician, magistrate, or natural philosopher would interpret through a different lens.
For a mythic parallel, the Greeks imagined frenzy itself as a power that could be sent. Lyssa, spirit of rage and maddening frenzy, stands close to the spell’s atmosphere: reason is not merely lost, but overrun by a hostile supernatural force.
Related Spells & Next Steps
If you are comparing mental battlefield control, start with the shorter-lived base form and then climb toward its stronger symbolic cousin.
Rules Sources
- D&D Free Rules / SRD 5.2.1 spell descriptions — used to confirm that there is no current official SRD Insanity spell entry.
- Archives of Nethys — Pathfinder 1e Insanity.
- d20SRD — D&D 3.5 Insanity.
- d20SRD — Dispel Magic for the instantaneous-duration dispel ruling.
- Avicenna and medieval medicine.
- Lyssa in Greek myth.
Rules text above is editorially rewritten for readability. Where a panel is source-native, the mechanics remain source-faithful. Where a panel is marked as a SpiralWorlds conversion, it is clearly identified as such.
Open Game Content notice: rules-derived mechanics on this page are presented under the terms applicable to their underlying open-content sources. Keep source attributions and licence notices in the site’s normal licence handling rather than interrupting the reader-facing opening.