Clutch of Orcus

(Libris Mortis: The Book of the Dead, DnD 3.5)

Necromancy[Evil]

Level: ; Cleric 3
Components: V, S
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Target: One humanoid
Duration: Concentration
Saving Throw: Fortitude negates
Spell Resistance: Yes

Magical force grips the subject's heart (or similar vital organ) and begins crushing it.
The victim reacts as if having a heart attack (it is paralyzed) and takes 1d3 points of damage per round.
Concentration is required to maintain the spell each round.
A conscious victim gains a new saving throw each round to end the spell.
If the victim dies as a result of this spell, its smoking heart appears in the caster's hand.