Prismatic eye

Prismatic eye was an alteration and evocation spell that caused a visible, directable orb, very much resembling a wizard eye, to appear over the shoulder of the caster.

Effects
The eye could commanded by the caster to travel around and share its vision with them. At regular intervals, it could be commanded to emit a pencil-thin ray of contrasting lights, similar to a color spray at a target. This ray could render creatures unconscious or stunned. Alternatively, the eye could be willed to emit a ray of light as per the spell of the same name.

The prismatic eye could be destroyed by normal, non-magical means.

Components
The material components of this spell were a dried, or preserved, eyeball and a polished slice of abalone, oyster or tortoise shell.