Magic Resistance. The chaos quadrapod has advantage on saving throws against spells and other magical effects.
Multiattack. The chaos quadrapod makes up to two tentacle attacks.
Tentacle. Melee Weapon Attack: +6 to hit, reach 15 ft., one target. Hit:11 (2d6 + 4) bludgeoning damage. If the target is a creature, it is grappled (escape DC 14). Until this grapple ends, the target is restrained. The chaos quadrapod can grapple no more than two targets at a time.
Chaos Cloud (Recharges after a Short or Long Rest). The chaos quadrapod shoots forth a knot of roiling ethereal light that explodes at a point it can see within 60 feet of it. Each creature in a 20-foot-radius sphere centered on that point must succeed on a DC 14 Charisma saving throw or be stunned until the end of its next turn.
A cluster of four suckered tentacles with a pulsing mass of ethereal light as its central body, the chaos quadrapod is a creature of the Far Realm, and it channels the anarchic power of that plane as it destroys all in its path. The quadrapod ambulates by flinging its mucus-covered tentacles out and dragging itself along, creating a horrid slurping sound as it advances relentlessly toward its prey.