A type of beholder almost unknown on worlds is the undead beholder, or death tyrant.

Death tyrants are rotting, mold-encrusted beholders. They may be shrivelled or even have cavities that expose their bony skeletons of platelets attached to spherical networks of circular ribs. All sport wounds, some have eyestalks missing, and a milky film covers their eyes. They move and turn more slowly than living beholders, striking and bringing their eyes to bear last in any combat round.

Combat: An undead beholder can use all powers of surviving eyes just as it did in life. The powers of 2-5 eyes (select randomly, including the central eye) are lost due to injuries death, and the change to undeath. Although a death tyrant 'heals' its motive energies through time, it cannot regenerate lost eyestalks or their powers.

Beholder-eye charm powers are lost in undeath. The two eyes that charmed either become useless (60%), or function as weak hold monster effects (40%). A being failing to save against such a hold remains held as long as the eye's gaze remains steady on them. If the eye is turned on another being, or the victim hooded or forcibly removed, the hold lasts another 1-3 rounds.

If not controlled by another creature through magic, a death tyrant hangs motionless until its creator's instructions are fulfilled (e.g., "Attack all humans who enter this chamber until they are destroyed or flee. Do not leave the chamber."). If no instructions are given to a "new" death tyrant, it attacks all living things it perceives.

Death tyrants occur spontaneously in very rare instances. In most cases, they are created through the magic of evil beings—from human mages to illithid villains. Some outcast, magic-using beholders have even been known to create death tyrants from their unfortunate brethren.

Habitat/Society: Death tyrants have no self-awareness or social interaction. Like orbi (see the description of the orbus in the SPELLJAMMER™ boxed set), they are mindless servants of living beholders. They will usually be found either abandoned (for example, in beholder ships or bases left ruined after a battle) or serving beholder society as guardians or unskilled workers.

"Mindless" is a relative term; the once highly intelligent brains of death tyrants still use their eyes skillfully to perceive and attack nearby foes. They are among the more intelligent undead; only the cunning and strategies they had in life are gone. When a death tyrant is controlled by another being, consider it to have the intelligence of its controller.

Ecology: Death tyrants are created from dying beholders, those condemned as traitors to their race (or sub-race; beholders belong to many warring clans), and captives taken in battle by beholders of another nation. A spell, thought to have been developed by human mages in the remote past, forces a beholder from a living to undead state, and imprints its brain with instructions.

A spell developed by spacefarers enables anyone having 15+ intelligence and natural or magical charm abilities (including a living beholder) to command obedience from a death tyrant. If such a spell is successful, the death tyrant will use its powers just as a charmed human obeys a wizard who cast the charm. Rumors of devices that create these control effects persist—as do tales of humans and liches who command death tyrant guards.

"Rogue" death tyrants also exist: those whose instructions specifically enable them to ignore all controlling attempts. These are immune to the control attempts of all other beings. Beholders often leave them as traps against rivals.

Human spell researchers report that control of a death tyrant is very difficult for humans. A beholder's mind fluctuates wildly in the amount and level of its mental activity, scrambling normal charm monster and control undead spells and variant magics developed from them. A special spell must be devised by any wizard desiring to command a death tyrant.

Although the eyestalks, brain, and levitation powers of a death tyrant still function, alchemists and wizards report that they disintegrate when the creatures are destroyed.

Zombie Beholder

According to certain funeral rites, it is possible to find beholder corpses enclosed in protective funeral shells. In addition, you can find small pools of thick red liquid. This is the salve used to cover the beholder corpses and repair their cracked shells. It has no other function. The salve is pasty to the touch and smells like sea water.

Assume a 20% chance that any given beholder corpse has a cracked or chipped shell. If a PC comes within ten feet of one of these beholders, it rises from the ground and pursues him. The beholder doesn’t attack the PC; it just wants the PC to repair its cracks.

A beholder zombie pursues for 2-12 rounds, after which time it gives up and settles back into the ash (although its eyes are no longer functional, the beholder zombie can sense the presence of the PCs). If the PCs repair its cracked shell (this takes 2-20 rounds), it also settles down. If the PCs attack it, it attempts to bump into them; an active zombie beholder can activate its chilling touch at will, with each touch inflicting 2-12 hp of damage (the victim may save vs. spells for half damage). An attacking zombie beholder continues to attack until it is destroyed or until its victims have fled at least 100 feet. At that point, the zombie beholder becomes inactive again.

If the PCs examine a beholder corpse whose shell isn’t cracked, the corpse remains inactive. However, if they damage the shell in any way, it becomes a zombie beholder and attacks as described.