Enormous and terrifying, astral dreadnoughts haunt the silvery void of the Astral Plane, causing planar travelers to shudder at the very thought of them. Dreadnoughts have been gliding through the astral mists since the dawn of the multiverse, trying to devour all other creatures they encounter.

Covered from head to tail in layers of thick, spiked plates, a dreadnought has two gnarled limbs that end in magic-enhanced pincer claws. Constellations appear to swirl in the depths of its single eye, and its serpentine tail trails off into the silvery void. Anything it swallows is deposited in a unique demiplane—an enclosed space that contains eons worth of detritus, as well as the remains of travelers. The place has gravity and breathable air, and organic matter decays there. When the dreadnought dies, its demiplane vanishes, and its contents are released into the Astral Plane.

Astral dreadnoughts exist for one reason: hubris. Not the hubris of mortals, but the hubris of gods who deem themselves too mighty to be approached and looked upon.

!!Astral Dreadnought

Enormous and terrifying monstrosities known as astral dreadnoughts haunt the silvery void of the Astral Plane, causing planar travelers to shudder at the very thought of them. They have been gliding through the astral mists since the dawn of the multiverse, trying to devour all other creatures they encounter.

As big as an ancient red dragon and covered from head to tail in layers of thick, spiked plates, a dreadnought has two gnarled limbs that end in razor-sharp pincer claws. Constellations appear to swirl in the depths of its single eye, and its serpentine, armored tail trails off into the silvery void.

An astral dreadnought lives a solitary existence. On the rare occasion when two dreadnoughts meet, they typically fight until one tires of the conflict and departs. Some mighty villains have enslaved astral dreadnoughts and used them to terrifying effect.

!!Antimagic Eye

Astral sailors claim that insanity awaits anyone who gazes into the eye of an astral dreadnought. What one sees reflected in that starry void is the sudden, terrifying realization of one's own mortality. Spellcasters have cause to fear the eye more than others, since it emits a continuous antimagic field. The dreadnought can shut off the effect by simply closing its eye, though it seldom has reason to do so.

!!Astral Predator

A remorseless, indiscriminate hunter, an astral dreadnought employs terrifying, if unimaginative, tactics. It uses its teeth and claws to tear apart its prey. Instinctively aware of how dangerous spellcasters can be, it maneuvers to keep as many opponents as possible within its antimagic gaze.

An astral dreadnought doesn't have a gullet or a digestive system. Anything it swallows is deposited in a unique demiplane—an enclosed space that contains eons worth of detritus, as well as the remains of dead planar travelers. The place has gravity and breathable air, and organic matter decays there. Although escape from the demiplane is possible with the aid of magic, most creatures arrive here only after they have died. When the dreadnought dies, its demiplane vanishes, and its contents are released into the Astral Plane.

An astral dreadnought doesn't communicate. It simply consumes any prey it finds, then continues its silent patrol. It can't leave the Astral Plane, nor would it want to.

!!Titans of the Chained God

Tharizdun, the Chained God, created astral dreadnoughts to devour planar travelers who were seeking portals that lead from the Astral Plane to the Outer Planes—portals they might use to gaze upon their gods or realize some dream of godhood.

Astral dreadnoughts don't procreate, so their population can't grow.

Even though githyanki and other astral voyagers hunt the creatures, they rarely see any success, and the dreadnoughts aren't in danger of becoming extinct anytime soon.

!!Titanic Nature

Although it eats and sleeps if it so desires, an astral dreadnought doesn't require air, food, drink, or sleep.