Magic:Disintegrate

Transmutation
Level: Sor/Wiz 6
Innate Level: 6
Component(s): V, S
Casting Time: 1 action
Range: Medium
Target: Single
Duration: Instantaneous
Counter(s): None
Saving Throw: Fortitude partial
Spell Resistance: Yes
Metamagic: Empower, Maximize, Quicken, Silent, Still
Energy Substitution: No

The caster creates a beam of light that is aimed at the target with a ranged touch attack. If hit, the target must make a Fortitude save or take 2d6 damage per caster level (to a maximum of 40d6). If the save is successful, the target still takes one-third of the damage.

Alternatively, Transmutant mages casting this spell turns the targeted creature into an Elder Air Elemental for 1 round per caster level.