Beholder Apparition

Ethereal Sight. The beholder can see 60 feet into the Ethereal Plane when it is on the Material Plane, and vice versa.

Incorporeal Movement. the beholder can move through other creatures and objects as if they were difficult terrain. It takes 5 (1d10) force damage if it ends its turn inside an object.

Bite. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 12 (4d6 - 2) force damage.

Etherealness. The beholder enters the Ethereal Plane from the Material Plane, or vice versa. It is visible on the Material Plane while it is in the Border Ethereal, and vice versa, yet it can't affect or be affected by anything on the other plane.

Eye Rays. The beholder shoots three of the following magical eye rays at random (reroll duplicates), choosing one to three targets it can see within 120 feet of it:

1. Paralyzing Ray. The targeted creature must succeed on a DC 14 Constitution saving throw or be paralyzed for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
2. Slowing Ray. The targeted creature must succeed on a DC 14 Dexterity saving throw. On a failed save, the target’s speed is halved for 1 minute. In addition, the creature can’t take reactions, and it can take either an action or a bonus action on its turn, not both. The creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
3. Enervation Ray. The targeted creature must make a DC 14 Constitution saving throw, taking 22 (5d8) necrotic damage on a failed save, or half as much damage on a successful one.
4. Telekinetic Ray. If the target is a creature, it must succeed on a DC 14 Strength saving throw or the beholder moves it up to 30 feet in any direction. It is restrained by the ray’s telekinetic grip until the start of the beholder’s next turn or until the beholder is incapacitated.
   If the target is an object weighing 300 pounds or less that isn’t being worn or carried, it is moved up to 30 feet in any direction. The beholder can also exert fine control on objects with this ray, such as manipulating a simple tool or opening a door or a container.
5. Sleep Ray. The targeted creature must succeed on a DC 14 Wisdom saving throw or fall asleep and remain unconscious for 1 minute. The target awakens if it takes damage or another creature takes an action to wake it. This ray has no effect on constructs and undead.
6. Petrification Ray. The targeted creature must make a DC 14 Dexterity saving throw. On a failed save, the creature begins to turn to stone and is restrained. It must repeat the saving throw at the end of its next turn. On a success, the effect ends. On a failure, the creature is petrified until freed by the greater restoration spell or other magic.
7. Disintegration Ray. If the target is a creature, it must succeed on a DC 16 Dexterity saving throw or take 27 (6d8) force damage. If this damage reduces the creature to 0 hit points, its body becomes a pile of fine gray dust.
   If the target is a Large or smaller nonmagical object or creation of magical force, it is disintegrated without a saving throw. If the target is a Huge or larger object or creation of magical force, this ray disintegrates a 10-foot cube of it.
8. Death Ray. The targeted creature must succeed on a DC 16 Dexterity saving throw or take 27 (5d10) necrotic damage. The target dies if the ray reduces it to 0 hit points.