Unname(Tome of Magic, p. 260)
Level: Sorcerer 9, Wizard 9,
Components: V, S, TN,
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Target: 1 creature with an Int of 3 or higher
Saving Throw: Fortitude negates
Spell Resistance: Yes
Remaining utterly still for a moment, you clench your fist and speak words of such potency that the creature you name simply ceases to exist. There's no fire, no flash, and no corpse. It's as if the creature you named never existed in the first place.
With this most powerful of spells, you erase a subject's truename from existence itself. The last thing the subject ever hears is your voice uttering its truename—then nothing but oblivion. Items worn, held, or carried by the creature are likewise obliterated with no save allowed.
Creatures killed with an unname spell are difficult to restore to life (see The Unnamed section below.)
Truename Component: When you cast this spell, you must correctly speak the personal truename of the creature you're trying to erase from reality.
Returning a creature to life after it has succumbed to an unname spell is difficult to accomplish. Resurrection isn't possible without a body, and the soul has been expunged as well. This spell alters reality itself so that the named creature cannot live; without a truename, its existence would violate the fundamental laws of the universe. In a 2-hour-long ceremony, a succession of spells needs to be cast. First, you perform a ritual of renaming to create a new personal truename for the creature you're trying to bring back from unnaming (this is an intentional exception to the target described in the ritual of renaming spell). Then a true resurrection spell must be cast to restore the soul (with its new personal truename) and life to the new body.