Homebrew Plasmoid Species Details

It was the strangest thing we had encountered by far. I was traversing a dungeon with my companions when we stumbled across a greenish-blue slime covering the floor. We followed it of course, expecting it to just be another one of those weird cubes that ingest everything, but it instead led us to a being that, while made of the same thing, looked human, female to be exact. I've never seen anything like it before in my entire life. It didn't do anything, didn't even get near us. It just... watched us, as if it were a curious child staring at someone in a market. When we approached, it squeezed itself through a small crack in the ground. If I had to guess, it was not only alive, but entirely aware of our presence. 

I swear, the more I explore, the crazier the things I find.

- Elaine Cunningham, Creatures of the Frontier

Life Will Find a Way

Plasmoids are amorphous beings with no typical shape. In the presence of other folk, they often adopt a similar form, but there’s little chance of mistaking a plasmoid for anything else. They consume food by osmosis, the way an amoeba does, and excrete waste through tiny pores. They breathe by absorbing oxygen through another set of pores, and their limbs are strong and flexible enough to grasp and manipulate weapons and tools. Although most plasmoids are translucent gray, they can alter their color and translucence by absorbing dyes through their pores. Plasmoids don’t have internal organs of the usual sort. Their bodies are composed of cells, fibers, plasma-like ooze, and clusters of nerves called ganglia. These nerves enable a plasmoid to detect light, heat, texture, sound, pain, and vibrations. Plasmoids can stiffen the outer layers of their bodies to maintain a humanlike shape, so they can wear clothing and accessories. They speak by forcing air out of tubular cavities that constrict to produce sound. When plasmoids sleep, they lose their rigidity and spread out and are sometimes mistaken for a rock or some other feature of the environment.

Plasmoid Traits

Plasmoids are a group of beings that have no set shape. Space sages theorize that the simple amoeba magically developed into the various oozes, slimes, and jellies, and these in turn developed into the species of plasmoids. All plasmoids can alter their shape at will.

Creature Type

You are an Ooze.

Size

You are Medium or Small. You choose the size when you gain this race.

Speed

Your walking speed is 30 feet.

Amorphous

You can squeeze through a space as narrow as 1 inch wide, provided you are wearing and carrying nothing. You also have advantage on Strength (Athletics) and Dexterity (Acrobatics) checks made to grapple a creature or escape a grapple caused by another creature.

Darkvision

You can see in dim light within 60 feet of you as if it were bright light and in darkness as if it were dim light. You discern colors in that darkness only as shades of gray.

Hold Breath

You can hold your breath for 1 hour.

Natural Resilience

You have resistance to acid and poison damage, and you have advantage on saving throws against being poisoned.

Self Shape

If you are not incapacitated, you can reshape your body to give yourself a head, one or two arms, one or two legs, and makeshift hands and feet, or you can revert to a limbless blob (no action required).

As a bonus action, you can extrude a pseudopod that is up to 6 inches wide and 10 feet long or reabsorb it into your body. You can use this pseudopod to manipulate an object, open an unlocked door or container, stow or retrieve an item from an open container, or pour out the contents of a container. The pseudopod can’t attack, activate magic items, or carry more than 10 pounds.

Ability Score Increase

Your Constitution score increases by 2. In addition, one other ability score of your choice increases by 1.

Age

It is unknown if Plasmoids age, though due to their gelatinous physiology, it is theorized it may take centuries for them to die off, if at all. 

Languages

You can speak, read, and write Common and one extra language of your choice. Through the unnatural circumstances by which you have gained true sentience, you have gained the means to communicate with other races. Though speech may be difficult, you can read and write without issue.