The Large Eye allows the Holder of the Staff once per long rest to evoke its True Seeing as a bonus action. 

As an Action once per turn, the holder of the staff can command one of the tendrils and execute one of the following rays using up the dedicated number of charges out of 10:

Eye Ray. The zombie uses a magical eye ray, choosing a target that it can see within 60 feet of it.

1. Paralyzing Ray (2 Charges). 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. Fear Ray (3 Charges). The targeted creature must succeed on a DC 14 Wisdom saving throw or be frightened 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.

3. Enervation Ray (7 Charges). The targeted creature must make a DC 14 Constitution saving throw, taking 36 (8d8) [roll]8d8[/roll] necrotic damage on a failed save, or half as much damage on a successful one.

4. Disintegration Ray (8 Charges). If the target is a creature, it must succeed on a DC 14 Dexterity saving throw or take 45 (10d8) [roll]10d8[/roll] force damage. If this damage reduces the creature to 0 hit points, its body becomes a pile of fine grey 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 nonmagical object or creation of magical force, this ray disintegrates a 10-foot cube of it.

If you expend the last charge, roll a d4.

on a 1, the staff will summon an undead beholder that will agro on the user of the staff set to half HP 

on a 2, releases a massive explosion doing 5d10 damage to anyone within 25ft of the staff

on a 3, the staff blackens and crumbles into cinders

on a 4, that staff will regain 1d6 charges 

Notes: This Staff Has been Forged By the Hill Dwaft Titsamore, after defeating a Zombie Beholder in the great battle to regain the path of light church, where he lost one of his long-time party members Shrek. Shreks name has been carved into the staff as he will be carried in future adventures as he was when he was alive. The Staff has the eye of the beholder shrunken down to 1 quarter of its original size as the top of the staff pierces the eye from the bottom and to hold it in place 4 Beholder Eye Stalks are wrapped around the large eye with each Stalk attached to the staff.  The Large eye has slight but constant movement, as its undead forum still has 1HP left from the battle as it still hungers for death. , Druid, Damage, Control, Combat, Warding