Planar Bestiary
If two yoxes find each other, either they tear each other apart trying to absorb the other, or both become disoriented and wander off.
A yox is a horrid mishmash of limbs, tiny wings, eyes, and mouths from many creatures, plus random metal parts. Their body is arranged somewhat like a starfish, with a flat core and limbs around the edge.
It is commonly believed that the first yox was created when a squadron of modrons (living constructs native to Mechanus) became trapped in a bubble of pure chaos and were fused together into one erratic, insane creature. The fact that yox are usually encountered in Limbo or planes adjacent to it supports this belief.
Motive: Unpredictable; absorb other creatures into themself
Environment: Limbo and adjacent Lower Planes, alone
Health: 33
Damage Inflicted: Moderate wound (5 points)
Armor: 1 (5 against whatever kind of energy damage harmed them last turn)
Movement: Short; immediate when hovering
Modifications: Speed defense as level 5 due to huge size; perception and Intellect defense as level 9 due to multiple heads
Combat: A yox attacks three times each round using some combination of their many limbs and mouths. If a yox kills a victim with their attack, the body is absorbed into the yox. Powerful magic is required to separate the corpse of any given individual from the yox.
A yox is surrounded by an aura of chaos that affects foes' minds. Each creature that starts their turn within immediate range of a yox and that fails an Intellect defense task acts erratically during their next turn. The victim rolls a d10 to determine their action. On a 1 to 4, the character does nothing. On a 5 or 6, the character uses their action to move in a randomly determined direction. On a 7 or 8, the character makes a melee attack against a randomly determined creature within immediate range, or does nothing if they can't make such an attack. On a 9 or 10, they can act and move normally.
Interaction: A yox's behavior is unpredictable. They might approach a group of travelers and scream at them before leaving, attempt to kill and consume a foe, follow others at a safe distance for minutes or hours, or remain still and observant despite any attempts to interact with them.
A yox knows the languages of all the creatures they have absorbed (most common languages).
Use: The monarch, ruling council, or leader of a large territory has been sent a gift from a rival realm. Conflict has long existed between the two, but peace and trade negotiations just started. The gift is a scroll inscribed with a spell that will apparently create a portal to wherever the gift resides. Is it a trap, or is it really a gift? The accompanying text simply reads, "Through this door lies a riddle made flesh. Enjoy!"
Loot: The mixture of flesh composing a yox may include a few indigestible objects caught in the seams, including a couple of magic cyphers such as a cloak of wings or damage boost gloves.
GM Intrusion: A character affected by the yox's aura of chaos attempts to fuse with the yox on their next turn, and could succeed if the character's friends don't hold them back.