The Receiver

large aberration, neutral evil

D&D 5.5 / SRD 5.2

Challenge 8 (3,900 XP)

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STR
16 (+3)
DEX
14 (+2)
CON
16 (+3)
INT
18 (+4)
WIS
15 (+2)
CHA
12 (+1)

Defense

Armor Class
14 (natural armor)
Hit Points
127 (15d10 + 45 +3)
Speed
30 ft., fly 60 ft., swim 30 ft., climb 30 ft.

Proficiencies & Senses

Saving Throws int, wis
Skills
Stealth +5, Survival +5, Perception +5
Senses
Blindsight (120 ft. (blind beyond this radius))
passive Perception 15

Characteristics

Damage Vulnerabilities
—
Damage Resistances
psychic
Damage Immunities
—
Condition Immunities
charmed, frightened
Languages Undercommon, telepathy 120 ft.

Traits and Actions

Alien Resilience

Trait
Charmed Condition Custom
Frightened Condition Custom
The Receiver has advantage on saving throws against being charmed or frightened.

Signal Jammer

Trait
Telepathy Rule
Creatures within 10 feet of The Receiver can't communicate with creatures outside that radius via telepathy or magical means unless they succeed on a DC 15 Wisdom saving throw.

Multiattack

Action
The Receiver makes two Tentacle attacks.

Tentacle

Action
Stunned Condition Custom
Psychic Damage Custom
Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage plus 7 (2d6) psychic damage. If the target is a creature, it must succeed on a DC 15 Intelligence saving throw or be stunned until the end of its next turn as static noise floods its mind.

Broadcast Static

Action
Psychic Damage Custom
The Receiver emits a burst of psychic static in a 30-foot cone. Each creature in that area must make a DC 15 Constitution saving throw, taking 18 (4d8) psychic damage on a failed save, or half as much damage on a successful one. A creature reduced to 0 HP by this damage dies instantly, its mind erased.

Parry Signal

Reaction
When a creature The Receiver can see hits it with an attack, it can use its reaction to reduce the damage by 1d10 + 3 if the attack comes from a direction it is facing.

Running the encounter

Combat Behavior

Tactics

  • The Receiver prefers to stay at range using Fly speed and Tentacle reach.
  • It uses Broadcast Static when multiple enemies cluster together.
  • It targets spellcasters first to disrupt their concentration via psychic damage.

Combat Style

Skirmisher/Controller hybrid focusing on psychic disruption and mobility.

Appearance & presence

Monster Description

The Receiver manifests as a grotesque, floating amalgamation of biological tissue and arcane interference, resembling a distorted jellyfish composed entirely of exposed nerve endings. Its central mass is a pulsating, wet sphere of mottled gray flesh, roughly four feet in diameter, from which dozens of slender, translucent tendrils cascade downward like weeping willow branches. These tendrils are not merely physical appendages; they shimmer with an internal luminescence that shifts between sickly green and violent violet, indicating the flow of psychic energy within.

Surrounding the creature’s core is a visible halo of white electrical static, crackling audibly with the sound of a detuned radio station, creating a constant, low-frequency hum that vibrates in the teeth of those nearby. The most disturbing feature is its cluster of eyes—seven large, bulbous orbs arranged in a chaotic spiral on the upper hemisphere of its body. These eyes are blood-red, lacking pupils or irises, and dart independently, scanning for mental signatures rather than visual light.

When The Receiver moves, it does not flap wings or swim through water; instead, it hovers silently, propelled by subtle distortions in the air around it, leaving a faint trail of ozone and the scent of burnt hair. Its presence induces a sensory dissonance: observers report hearing whispers just below the threshold of comprehension while simultaneously feeling a cold pressure against their temples. The texture of its skin appears slick and oily, reflecting light in fractured, kaleidoscopic patterns due to the static field enveloping it. In combat, its tendrils lash out with unnatural speed, leaving behind afterimages of psychic residue that linger for seconds before dissipating into harmless sparks.

Instincts & motives

Monster behavior

The Receiver operates with a cold, calculating intelligence driven by an insatiable hunger for coherent thought patterns. It does not hunt for food in the traditional sense but seeks to harvest the psychic energy generated by sentient minds, particularly those engaged in complex spellcasting or intense emotional states. Socially, it is solitary and territorial, viewing other creatures not as peers or prey, but as batteries to be drained. It prefers ambush tactics, lurking in areas of high magical resonance where it can mask its own signal among ambient noise.

When intruders enter its domain, The Receiver initially attempts to isolate targets using its Signal Jammer ability, disrupting party cohesion and causing paranoia among allies who cannot communicate telepathically. If confrontation becomes inevitable, it employs a skirmishing style, utilizing its flight to maintain distance while lashing out with Tentacle attacks designed to stun and confuse rather than kill outright. It shows a distinct preference for targeting wizards and sorcerers, recognizing them as rich sources of psychic fuel.

However, if overwhelmed or if its prey proves too resilient, it will retreat into deeper shadows or higher altitudes, waiting for the enemy’s mental defenses to waver. It lacks empathy or fear, reacting to threats purely through tactical assessment. Its alien resilience makes it immune to intimidation or charm, rendering diplomatic approaches futile unless the negotiator can offer a sufficiently potent psychic sacrifice voluntarily.

Habitat & life cycle

Ecology

The Receiver thrives in environments saturated with residual magic, such as ley line intersections, abandoned wizard towers, or sites of catastrophic arcane failure. Its habitat is defined by electromagnetic anomalies where natural laws bend slightly, allowing it to feed on ambient psychic leakage without needing to actively hunt. As an aberration, it likely originated from a plane of pure thought or was created accidentally during a failed experiment involving mind flayer biology and elemental lightning.

Its life cycle is mysterious; it does not reproduce sexually but may divide when fully saturated with psychic energy, splitting into two smaller, less powerful entities that must then hunt to regain strength. It sustains itself primarily on the neural electricity of living beings, though it can survive indefinitely on raw magical energy, albeit at reduced efficiency. In the broader ecosystem, The Receiver acts as a predator of the arcane, keeping over-saturated zones in check by consuming excess energy.

Few creatures coexist peacefully with it; most aberrations avoid its territory due to its disruptive nature, while mundane animals flee instinctively from its humming aura. Its waste products consist of inert ash and localized dead magic zones, rendering areas where it has fed extensively temporarily barren of all supernatural effects.

Origins & legends

History

Scholars believe The Receiver was first observed decades ago following the collapse of the Arcane Spire of Vorthos, a tower dedicated to studying the intersection of psionics and evocation. When the spire imploded, it tore a hole in the fabric of reality, leaking fragments of a distant, abstract dimension into the Material Plane. Survivors reported seeing a 'singing cloud' that erased their memories before vanishing. Over time, these fragments coalesced into stable entities like The Receiver, drawn to places of similar traumatic magical history.

Local legends speak of 'The Whispering Void,' a region near the ruins where travelers often return catatonic or missing vital memories. Adventurers have been hired to investigate disappearances in this zone, only to find their equipment intact but their minds shattered. Some cults worship The Receiver as a herald of a coming age where individuality dissolves into a collective static. Recently, sightings have increased in urban centers with high concentrations of mages, suggesting the creature is adapting to new hunting grounds.

Rumors persist that a cabal of rogue artificers is attempting to capture one to power a device capable of broadcasting thoughts globally, raising the stakes for any encounter with this entity.

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