Implosion

SchoolEvocation
LevelClr 9, Destruction 9
ComponentsV, S
Casting Time1 standard action
RangeClose (25 ft. + 5 ft./2 levels)
DurationConcentration (up to 4 rounds)
TargetsOne corporeal creature/round
Saving ThrowFortitude negates
Spell ResistanceYes

You create a destructive resonance in a corporeal creature’s body. For each round you concentrate, you cause one creature to collapse in on itself, killing it. (This effect, being instantaneous, cannot be dispelled.)

You can target a particular creature only once with each casting of the spell.

Implosion has no effect on creatures in gaseous form or on incorporeal creatures.