Homebrew Experiment Species Details

You are not quite what you seem,.
at first glance you look like a normal human, but upon closer inspectiont there is just something not quite right.

Once you were a normal person, an elf,human,halfling,ecetera.
Yet you have been treated and experimented on as a test subject.
From a distance you still look like a regular person, upon closer inspection you have a visible malformation that marks you as not quite human ( or other generic race).
Your skin can have abnormal coloration, dark veins,  your eyes have changed colour, you lack a normal nose. This is for the player to decide and describe.

Experiment Traits

ability score, artificial origin,unsettling presense

ability score increase

+2 con, another ability of your choice +1

unsettling presence

You look normal from a distance, but upon closer inspection something feels off.
Choose a defining malformation as a visual feature.
disadvantage on persuasion and deception.
You gain proficiency with intimidation.

artificial resistance

You have a resistance to necrotic damage.

hold breath

You can hold your breath for 15 minutes at a time.

artificial stamina

When you are reduced to 0 hit points but not killed outright, you can drop to 1 hit point instead. You can’t use this feature again until you finish a long rest.

language

you speak read and write common