Homebrew Imposter Species Details

Imposters combine their natural stealth and scientific intelligence to help them sabotage the ship. Their small stature and charismatic appeal easily helps them blame someone else for their actions. Not only can they easily crawl through vents without struggle but they can also use a combination of intelligence and magic to create certain effects, like shutting doors, cause flames to extinguish, and to cause written text to be unintelligible for a short period of time.

Age
Imposters mature at the same rate as humans and can live up to 160 years. 

Size
Imposters are between 3 and 4 feet and weigh 85 to 95 pounds.

Color
An Imposter is usually unicolored, excluding their single, glassy visor. All Imposters are either Red, Yellow, Black, Green, Purple, White, Pink, Blue, Brown, or Orange. Their backpack and visor are unremovable and the backpack will always be the same color as their main suit.

Unusual Anatomy
An Imposter or their crewmates when killed will appear to have a single bone erected from their main body where their head should be. Red blood will always be around that.

Imposter Traits

nah man, I was in electrical

Ability score increase

Your charisma score increases by 2, and your dexterity score increases by 1.

Age

Imposters mature at the same rate as humans, but they can live up to 160 years.

Size

Imposters and their crew are between 3 and 4 feet tall and weigh 85 to 95 pounds. Your size is small.

Speed

Your walking speed is 25 feet.

Darkvision

You can see dim light within 60 feet of you as if it were bright light, an in darkness as if it were dim light. You can't discern colors in darkness, just shades of gray.

Vent Walker

Crawling doesn't cost you extra movement.

It wasn't me.

You have advantage on Charisma(Deception) checks to blame another creature for your actions.

Surprise Attack

If you surprise a creature and hit it with an attack on your first turn in combat, the attack deals an extra 2d6 damage to it. You can use this trait only once per combat.

Disruptive Sabotage

You are proficient in thieve's tools. In addition, you can use them as an action to magically trigger one of the following sabotage effects within 30 feet of you.

• You can instantaneously cause unlocked doors and windows to slam shut. They become locked until the end of your next turn.
• You instantaneously cause flames to be extinguish.
• You cause all written text to be unintelligible for 1 minute. This has no effect on spellbooks.