Umbral Infusion, Mass

Necromancy [shadow]
Level: Cleric */Oracle * 8, Sorcerer */Wizard * 8, Warlock * 8
Components: V, S
Casting Time: 1 Standard Action
Range: close (25 ft. + 5 ft./2 levels)
Target: one mindless undead creature/level, no two of which can be more than 30 ft. apart
Duration: 1 minute/level
Saving Throw: Will negates
Spell Resistance: yes

This spell functions as umbral infusion, except it can affect multiple mindless undead creatures.