Fester, Mass

Necromancy
Level: Inquisitor * 6, Warlock * 6
Components: V, S, M (rotted meat)
Casting Time: 1 Standard Action
Range: close (25 ft. + 5 ft./2 levels)
Target: one creature/level, no two of which can be more than 30 ft. apart
Duration: 1 round/level or 1 round; see text
Saving Throw: Fortitude partial
Spell Resistance: yes

This spell functions as fester, except that it affects multiple foes.