You have learned the magic of death.
Prerequisite: Caster level 5.
Benefit: You may select 6 spells from the following bonus spell list. The spells selected must be of levels you can cast, and become part of your spell list. You may not select more spells from a level than you have selected from each level below it. (You may take this feat more than once in order to eventually gain higher level spells. See Special, below.)
If you are a spellcaster with limited spells known (bards and sorcerers, for example), you do not automatically know the spells you select from this list. However, you may learn three of these selected spells and count them as only one spell slot toward your maximum spells known. This slot must be of the highest level spell being learned.
Each time you kill a living creature with a CR of at least your level –3, you gain one death mark. As a free action you may spend a death mark. This allows you to cast one of your known necrothurge spells by spending a spell slot of the same level or higher. You must meet all the normal requirements and components (including casting time) in order to cast the necrothruge spell.
Each day when you rest, recover hit points, and regain uses of your spells, you lose any unused death marks.
0 level: bleed, disrupt undead, touch of fatigue
1st level: cause fear, deathwatch, scare, ray of enfeeblement
2nd level: blindness/deafness, command undead, death knell, gentle repose
3rd level: animate dead, halt undead, speak with dead, ray of exhaustion
4th level: contagion, death ward, fear
5th level: blight, slay living, symbol of pain
6th level: circle of death, create undead, undeath to death
7th level: control undead, destruction, finger of death
8th level: create greater undead, horrid wilting, waves of exhaustion
9th level: soul bind, wail of the banshee
Special: This feat may be selected more than once. Each time it allows you to select 6 more spells from the list.
Adventurer’s Handbook: Genius Guide Volume 1