Invisibility Sphere

Caster Level: Bard 3, Wizard/Sorcerer 3, Cleric 3 (Trickery Domain)
Innate Level: 3
School: Illusion
Components: V,S
Range: Personnal
Save: None
Spell Resistance: No
Area of Effect: Caster, 15ft Radius
Duration: 1 Turn / Level
Additional Counterspells: Invisibility Purge
Description: 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.