Deathless

Necromancy
Level: Alchemist* 4, Artificer * 4, Cleric */Oracle * 4, Inquisitor * 4, Sorcerer */Wizard * 4, Warlock * 4
Components: V, S
Casting Time: 1 Standard Action
Range: touch
Target: living creature touched
Duration: 1 round/level
Saving Throw: Fortitude negates (harmless)
Spell Resistance: yes (harmless)
  The target's soul is strongly anchored to its body, preventing death from hit point damage. No matter how low the target's hit points get, it remains alive (though not necessarily conscious). This spell doesn't prevent death from sources other than hit point damage-such as Constitution damage or drain, death effects, or Energy Drain. Spells that cure hit points affect the creature normally.