Watcher's Gaze

You summon a spectral, quivering eye made of energy in the air, near a hostile creature within range. The eye sends out an effect in a 20 foot cone in a direction of your choosing that makes the affected creatures blind & deafened to anything outside the cone's effect, but they can still see & hear inside the cone as normal. The eye & the cone's effect follow the target originally chosen for the spell, but does not move from its initial summoning.