Unusual Nature. The eyedrake doesn't require food or drink.
Bite. Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit:13 (3d6 + 3) piercing damage.
Antimagic Breath (Recharge). The eyedrake emits a magic wave in a 30-foot cone. Each creature in that area must make a DC 14 Constitution saving throw, taking 39 (6d12) force damage on a failed save, or half as much damage on a successful one. Every spell of 3rd level or lower ends on creatures and objects of the eyedrake's choice in that area.
Eye Rays. The eyedrake shoots three of the following magical eye rays at random (reroll duplicates), each ray targeting one creature it can see within 60 feet of it:
When a beholder contends with a dragon for power and wealth, its thoughts of its dragon rival can become deeply obsessive, eventually pervading the beholder's dreams. If the rivalry lasts long enough, these fevered dreams can manifest as an eyedrake—a beholder-like creature with draconic features.