Once extra ENterplanetary DimENsions is headed for a wierd realm, this time to a spot the place nature runs as rampant because the unimaginable monsters that dwell inside it: Xenial Xyclione!

The aircraft of Xyclione is ever transferring ahead but on this place nature’s cycle has been one way or the other led astray—species proliferate and die out in years as a substitute of eons, and creatures not native to this mutable dimension are remodeled by it even sooner. How Xyclione got here to its state of fixed change is an enigma that some are nonetheless attempting to type out (although few have any probability of success apart from the longest-lived sages). There are those that are beginning to suspect the reality: all the realm isn’t just within the form of an ouroboros, its denizens and their progenitors and their progeny are held simply as steadfast. What as soon as was efficacious for a creature turns into a legal responsibility, it dies out, the factor that noticed its final demise then suffers the identical destiny, and after a dozen iterations or much less that very same previous conduct or organic quirk arises anew.

Few issues can’t be present in Xyclione save for caves and deserts; stress beneath the floor is simply too nice for passages or tunnels, and life there may be too plentiful and keen to go away any space barren. The peculiar nature of the world encourages flourishing environments like grasslands and forests of every kind, in addition to rivers and seas flowing into them, all teeming with astonishing wildlife. These creatures are typically carnivores and typically not, however all of them are ravenous eaters, rising and dying at charges sooner than related issues in realms elsewhere. The move of evolution is much too swift for civilization to take root among the many native creatures of Xyclione, and no settlers but have been in a position to withstand the aircraft’s pressures to alter lengthy sufficient to determine little greater than ruins.

Planar Traits. Xyclione has the next planar traits and the Narrator ought to make use of the acid, brown mould, inexperienced slime, heavy precipitation, lava, miring floor, toxic vegetation, dashing liquid, webs, and yellow mould encounter components. When it’s attainable to take action, noticing one in all these encounter components earlier than it’s too near keep away from requires a DC 16 Nature verify.

Changing Consumption​

Nourishment is bountiful all through Xyclione however solely the courageous, silly, or really determined dare devour something discovered there. The pollen from vegetation on this dimension is extraordinarily potent, its very nature reworking and altering no matter blade of grass, leaf, or tree it comes into contact with. Although to the bare eye nothing is noticeable, the basic properties of a plant can change a number of instances earlier than it’s consumed—but its legacy doesn’t finish there. These remodeled vegetation are eaten by varied creatures, who in flip are eaten by nonetheless extra, leading to whole ecosystems thriving on the idea of a substance that promotes speedy change. Though simply sneezed away or in any other case eradicated by a creature’s pure vigor, when the pollen-touched meat or plant enters into the abdomen it’s an invite to entropy.

When a creature not native to the aircraft consumes Supply from Xyclione it makes a Constitution saving throw or suffers an impact based mostly on the Supply’s primary substance kind (see Table: Changing Consumption). A creature can solely be affected by a substance’s preliminary impact, secondary impact, or ultimate impact at a time, however could also be concurrently affected by a number of Xyclonian substances. After every week has handed with out consuming any Xyclonian Supply, a creature ceases to endure from its present impact of Changing Consumption, transferring from ultimate impact to secondary impact, secondary impact to preliminary impact, or preliminary impact to none.

Table: Changing Consumption

Extreme Evolution​

A lifetime of consuming the transformative substances on Xyclione quickly accelerates the method of evolution. Creatures native to this dimension are capable of eat their fill with out struggling rapid results from doing so, however every little thing their progeny inherits is leaps and bounds totally different; some offspring can every possess traits neither shares with one another or their dad and mom. Otherwise the aircraft’s highly effective pollen solely causes transformations in these allergic to it, however these modifications are usually not simply drastic—they’re instantaneous.

When a dwelling creature is bloodied whereas on Xyclione it rolls 1d100, including 1 for each time it has been bloodied since ending a protracted relaxation. On a results of 100 or larger the creature undergoes an excessive evolution, as listed beneath. An excessive evolution can solely be eliminated with a casting of larger restoration, heal, regeneration, or want.

An aberration, beast, celestial, dragon, fey, fiend, large, humanoid, or monstrosity that undergoes an excessive evolution rolls 1d6, randomly figuring out a capability rating to extend by 2. In addition, its physique transforms (roll 1d8 and see Table: Extreme Evolution). Finally, every time the creature finishes a brief or lengthy relaxation it rolls 1d6, gaining the secondary impact of Changing Consumption till it subsequent finishes a brief or lengthy relaxation.

A plant that undergoes an excessive evolution will increase all of its skill scores by 2. In addition, it can’t be frightened, rattled, slowed, or surprised.

Extreme evolutions fade after a creature spends a month or longer away from Xyclione.

Native Evolutions. Aberrations, beasts, celestials, dragons, fey, fiends, giants, humanoids, monstrosities, and vegetation native to Xyclione routinely acquire an excessive evolution. This excessive evolution is everlasting.

Table: Extreme Evolution

Greenery Graves​

Choice bits from the corpse of a useless creature in Xyclione quickly disappear to carrion eaters and keen bugs earlier than being overtaken by vehement vegetation, normally inside a matter of hours or much less. What stays on bones or monstrous conceal congeals as it’s fed by the pollen, rising into brown mould, inexperienced slime, and yellow mould. Cadavers are additionally a typical supply of troublesome pests (or voracious pests) and rot grubs.

Mighty Markers​

Past makes an attempt to rein within the wilderness of Xyclione defiantly attain out of the earth in direction of the sky, nice pylons of stone that rise above the bushes. What is outstanding about these constructions is that they resist the aggressive vegetation that overtakes all different issues—and the highly effective presence of every might be felt by all close by. Though disagreeable to endure, these mighty markers are each a option to make sense of the panorama and supply an quantity of security for these in want of a spot to relaxation. Creatures with an Intelligence of 4 or much less are unwilling to go close to a mighty marker until coerced, and basically the native species of Xyclione keep away from them until chasing down prey or in any other case lured.

At the tip of every minute a creature is inside a mile of a mighty marker, it makes a DC 20 Charisma saving throw or it’s slowed for the subsequent minute. At the tip of every of its turns, a creature repeats the saving throw, ending the impact on itself on successful. Once a creature has efficiently resisted the results of a mighty marker, it’s resistant to that mighty marker’s results for the subsequent hour.

Magical Navigation​

Observing a mighty marker whereas beneath the results of detect magic reveals a mile-wide aura of transmutation round it, but in addition auras of divination magic formed like arrows of various size. Each arrow factors to a different mighty marker with a size applicable to the gap between the 2—after touring between three mighty markers following these divination arrows, a DC 8 Intelligence verify whereas taking a look at one reveals the gap it describes.

Rounded Reality​

The dimension of Xyclione is inside-out: the sky is at its middle and gravity’s pull is biggest furthest away beneath the floor. When one stands on the bottom on this aircraft they’re trying inward if trying up, or outward whereas staring down. Consequently the one method out is by digging down, and few issues are capable of transfer earth and stone quickly sufficient to take action—or survive the journey.

There’s gentle gravity whereas 50 toes or larger above the bottom (or on the Narrator’s discretion, excessive sufficient up a tree or mountainside), and heavy gravity begins 50 toes beneath the floor (or on the Narrator’s discretion, deep sufficient in a canyon or valley).

Crushing Excavations​

Xyclione pulls onerous at its dust. Going down beneath the floor is tough and harmful, the danger of even pits collapsing in on themselves a certainty—what just isn’t recognized is that if destruction will take seconds, minutes, or hours. This usually makes burrowing creatures one thing of a rarity, however the speedy evolutionary cycle by which the dimension is caught retains it a fascinating trait in at the very least one area of Xyclione at any given time.

Xyclione Pressure. At the tip of every minute spent greater than 400 toes beneath the floor of Xyclione, a creature or object should make a Strength saving throw (DC 8 + 2 per earlier profitable save). On a failed save, it takes 2d6 bludgeoning harm per 400 toes beneath the floor. Gargantuan and Titanic creatures routinely succeed on this saving throw.

Endless Sky​

Sourceless gentle shines down onto the floor of Xyclione in any respect hours. This everlasting luminescence isn’t just a curiosity however a tesseract as nicely, creatures flying into it magically shedding any sense of course as toes immediately turn out to be miles. The solely method out is by falling which ends up in the creature reappearing in the identical space it flew into the tesseract from.