Klyntar (5e Race)
From D&D Wiki
An ooze-like creature that bonds with a host so that they both may thrive. Can be any colour whatsoever and take on a variety of shapes. Klyntar look sort of like silly putty that stretched too far: masses of oozelike matter stretching and contorting any way possible. Their host may appear to grow tentacles out of random bits of their body, but that's just the Klyntar. In their natural forms, Klyntar look like slimy black spiders with too many legs. 
The Klyntar come from a "planet", also referred to as Klyntar. They are a symbiotic species that require a host to live anywhere other than their homeworld. Created by a deity that existed before even the creation of the universe their god pulled them from the void of space and created for the destruction of all creation. Their god, Knull, was eventually betrayed by the klyntar and forced to live as a prisoner in the very center of their planet. today the symbiote choose their own ways of life many of which leave their homeland in search of new worlds and hosts across the universe.
Klyntar often live solitary from others of their kind but are happy living quietly among their hosts society. When living in their host society, Klyntar ar often quiet and act normally. Sometimes even their host might not be aware of their presence. Some Klyntar are actively evil, which when linked to an evil host, can have catastrophic consequences. Other Klyntar tend to an anti-hero role, protecting the innocent but generally doing whatever they like.
Klyntars adopt a unique moniker based on people's reactions to them, or just a personal preference. They may use their host's name in some situations.
Male: Venom, Toxin, Carnage, Riot, Lasher
Female: Agony, Scream, Scorn
An oozelike parasite which grants their host extraordinary capabilities.
Ability Score Increase. Your Strength score increases by 2, and your Dexterity score increases by 1.
Age. Klyntar do not age. When a Klyntar's host dies, it must find another or die in one week's time.
Alignment. Typically klyntar are evil or chaotic but are capable of any alignments.
Size. Without a host the klyntar are Small in size. With a host, the size is the same as the host creature.
Speed. Your base walking speed is 20 feet without a host.
Blindsight. You can see, with 60 feet, in normal and magical darkness.
Waterbreathing. Klyntar hold oxygen within themselves essentially giving the host the ability to breathe underwater.
Forceful shapechanger. The Klyntar can form and dispel natural weapons as a bonus action, these weapons deal 1d6 of the appropriate damage type (i.e. claws will deal piercing damage).
Camouflage. The klyntar race can allow their host to blend seamlessly into their surroundings making them nearly undetectable. You gain advantage on stealth rolls while in dim light or darkness.
Parasite. The Klyntar must have a host at all times. The host can be any creature of medium size or smaller (DM can choose whether to allow large host or not). The Kylntar resides inside their host with no physical changes visible, and can act independently of the host. You must fuse with another member of your party to survive beyond a week, the fusing process takes one hour, and requires concentration by both parties. When fused, the host must eat twice as much food as normal in order to sustain the Klyntar. You can use you reaction to attempt to save your host: if your host would take damage that would drop them to 0 hit points, you may use your reaction to extend a psuedopod to intercept the attack. You must make a dexterity check contested by the attacker's strength check. On a success, your host takes 1/4 damage, rounded up.
Internal communication. You have telepathy with your host, you must form an extrnal organ such as a mouth or hand to write or speak. You can use your host's sight, or form your own eyes.
Linked. You are linked to your host. You occupy the same space as your host, move with them, and take damage when they do. Your host host automatically has the Klyntar Host class (5e homebrew), and must meet the multiclass prerequisites of the class they previously wished to take (e.g. must multicalss to become a monk).
Languages. The klyntar can learn languages faster than any other race through symbiosis with multiple different hosts at a time, however, until a klyntar has acquired a host the only language it knows is Abyssal.
Random Height and Weight
|1′ 0″||+1d4||5 lb.||× (1d4) lb.|
*Height = base height + height modifier
Use these characteristics to flesh out your Klyntar and create interesting arguments with your host.
|1||I must gain power from as many different hosts as possible.|
|2||My host is my closest friend.|
|3||Chains are meant to be broken, as are those who would forge them.|
|4||Redemption. There's a spark of good in everyone.|
|5||Tradition. The stories, legends, and songs of the past must never be forgotten.|
|6||Power. If I can attain more power, no one will tell me what to do.|
|1||A powerful person killed someone I love. Some day soon, I'll have my revenge.|
|2||I wish to achieve complete symbiosis with my host|
|3||I have a family, but I have no idea where they are. One day, I hope to see them again.|
|4||I protect those who cannot protect themselves.|
|5||I entered seclusion to hide from the ones who might still be hunting me.|
|6||No one else is going to have to endure the hardships I've been through.|
|1||My True form is terrifying to even my closest friends|
|2||my host constantly begs for release.|
|3||I lash out aggressively at the site of a host who abandoned me.|
|4||My host sometimes regains control and tries to flee to their home|
|5||I crave the blood of my enemies|
|6||I often end up taking beasts as hosts.|