You are an Monstrosity.

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

Your walking speed is 30 feet.

You can see in dim light within 60 feet of yourself 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.

Your composite form has remarkable mental and physical fortitude, represented by the following benefits:

• You have advantage on all Wisdom saving throws.
• You have resistance to psychic damage.
• You are immune to disease.
• You don’t need to sleep, and magic can’t put you to sleep.

You do not require sleep and can remain conscious during a long rest, though you must still refrain from strenuous activity to gain the benefit of the rest.

As an action, 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 formless swarm. While you have a humanlike shape, you can wear clothing and armor made for a Humanoid of your size.

As a bonus action, you can extrude a secondary swarm that is up to 6 inches wide and 10 feet long or reabsorb it into your body. As part of the same bonus action, you can use this swarm to manipulate an object, open or close a door or container, or pick up or set down a Tiny object. The swarm can’t attack, activate magic items, or lift more than 10 pounds. The swarm does retain its senses from the main body, but it can only relay its discoveries upon reabsorption.

You can squeeze through a space as narrow as 1 inch wide, provided you are wearing and carrying nothing. You have advantage on ability checks you make to initiate or escape a grapple.