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Minimus containment is an 8th level arcane magic arcane spell used to bind an extraplanar creature.


Minimus containment is cast on an elemental or outsider already trapped in a planar binding. It binds the creature's spirit into a gem whose value must be proportional to the power of the creature bound, similarly in effect to the spell trap the soul.

The creature is bound until certain conditions are met, as defined at the spell casting. Once released, the creature performs a duty set when the spell is cast, the gem turns to dust, and the creature returns to its home plane. Negotiating the terms is challenging, and carries a marginal risk that the creature will break free and bind you for a number of days and occupy your body instead.

If an occupied gem is ground to dust and sprinkled on an object, it now possesses that object instead.[1]


The spell minimus containment appears in the Demonomicon of Iggwilv, an object used over a century ago to bind the demon lord Graz'zt.[1]

Publication history[]

D&D 3rd edition[]

Minimus containment first appeared as a Sorcerer/Wizard level 8 spell in The Demonomicon of Iggwilv, Dragon #336 (Oct 2005), p.82-83.

Prior to this, "minimus containment" referred to one possible effect of the spell binding.


  1. 1.0 1.1 The Demonomicon of Iggwilv, Dragon #336 (Oct 2005), p.82-83.