Steal Years, Greater

Transmutation
Level: Cleric */Oracle * 5, Druid * 5, Hunter * 5, Sorcerer */Wizard * 5, Warlock * 5
Components: V, S, M (a handful of ash)
Casting Time: 1 Standard Action
Range: touch
Target: creature touched
Duration: 1 day/level
Saving Throw: Fortitude negates
Spell Resistance: yes

This spell functions like steal years, except you drain 1d6 years per two Caster Levels (maximum 10d6).