Soul Assimilation

Level: Chr 8 (cleric, sorcerer/wizard, witch) (druid 9)
Components: V, S, M (the ashes of a lotus flower and a red gem worth 5000 gp, consumed upon casting)
Casting Time: 1 hour
Range: Touch
Effect: Pne living creature
Duration: instantaneous
Saving Throw: Will partial (see text)
Spell Resistance: Yes

When you finalize this spell, you touch the forehead of the victim holding the gem in your other hand. The victim makes a Will save or takes 12d10 + 20 points of necrotic damage. If the victim is reduced to 0 hp, he dies and you get to, essentially, dissect his soul. When you destroy their soul, you can assimilate some of their abilities. Some options are: Once class ability for ever four levels the victim had at the time of death, fly, swim or climb abilities at half the victim’s speed, damage resistance or immunises, blind sense, tremor sense, or true sight, the ability to communicate in any way that the victim could communicate, or gain some of their magical atonement, gaining some of the spell slots they had in life.