Vorpal Missile
Evocation
Level: Sor/Wiz 4
Components: V, S
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Target: One creature
Duration: Instantaneous
Saving Throw: None
Spell Resistance: Yes
A disk-shaped missile of magical energy darts forth from your fingertip. If you succeed a ranged touch attack against your target, you deal 3d6 points of force damage. If your attack roll was a natural 20 and you confirm the critical hit, the missile severs the creature's head (if it has one) from its body. Some creatures, such as many aberrations and all oozes, have no heads. Others, such as golems and undead creatures other than vampires, are not affected by the loss of their heads. Most other creatures, however, die when their heads are cut off.