Sorry I thought at least one person would post an old RPG favourite..
Speak with dead, you raise the spirit from the remains of a body to communicate with them.
Compleling secrets and infomation from them.
Finger of death, instant kill if a save is failed, tbh I doubt saves are in however make it a simple level check.
If they pass you deal X damage to them.
Symbol of death, kills any creature below X health automatically, no effect on stronger enemies.
Wail of the banshee, a close range AoE finger of death.
Skull trap, use a skull to form a magical trap, when triggered by someone drawing close the skull shatters and deals a large amount of physical AoE damage.
Raise dead, bring back a corpse as a companion.
Depending on level greater undead can be created.
Resurrect, bring back an NPC as themselves, they are no longer dead or undead.
Just fully living, breathing NPC's as they were before death.
Curse, AoE enemy attacks deal less damage and are slower.
Enervation. Targets can not heal themselves.
Disease, Targets are inflicted with a disease and suffer all penalties from it.