Invisibility Sphere

School: illusion
Circle: arcane 3rd, bardic 3rd, occult 3rd
Spell Components: V, S
Action Time: 1 action
Range: short
Shape: radius (small)
Targeting: all (radius)
Base Duration: quick
Saving Throw: will (harmless)
Spell Resistance: yes
Ritual Components: refined prism dust pile

Causes a field of translucent energy to descend on all affected, granting invisibility until their next weapon attack.