Overseers resemble fleshy trees. They have 13 limbs, each of which ends in a bud that conceals an eye; one of these limbs forms the top spine, and three yammering mouths surround the spine. There are eight thorny, vine-like limbs that are used to grasp tools and for physical defense, inflicting 1d10+2 points of damage each. Overseers sit on root-like bases and can inch along when movement is required. They cannot levitate.
Overseers are covered with a fungus which changes color as the overseers desire, commonly mottled green, gray, and brown.
Overseers may use any physical weapons or artifacts. The powers of their 13 eyes are as follows (all magical effects are cast at 14th level).
An overseers AC is 2, but each eye stalk is AC 7 and is severed if it suffers 10 points of damage. Like hive mothers (that operate with them), overseers can convince similar beholders and beholder-kin to work together. Overseers are very protective of their health and always have one or two beholder guards and at least a half dozen directors protecting their welfare.