Invisibility Sphere

Caster Level(s): Bard 3, Wizard / Sorcerer 3
Innate Level: 3
School: Illusion
Descriptor(s):
Component(s): Verbal, Somatic
Range: Personal
Area of Effect / Target: Caster, 15ft Radius
Duration: 1 Turn / Level
Additional Counter Spells: Invisibility Purge
Save: Harmless
Spell Resistance: No

The caster brings into being a zone of invisibility that travels with him for the duration of the spell. All allies within the spell's area of effect are rendered invisible, but not to each other. Those that leave the sphere are visible once more.