CASTS: Sentient robotic humanoids that were created by mankind to help on the ship but gained the right to be a citizen several years later. Most young CASTS tend to be rather logical and have to grow into their programmed emotions.
ASI: Your Constitution score increases by 2.
Size. Synthoids are generally broader and heavier than humans. Your size is Medium.
Speed. Your base walking speed is 30 feet.
Composite Plating. Your construction incorporates metal, granting you a +1 bonus to Armor Class.
Darkvision. Programmed with night-vision specs, you have superior vision in dark and dim conditions. 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 can’t discern color in darkness, only shades of green.
Living Construct. Even though you were constructed, you are a living creature. You are immune to disease. You do not need to eat or breathe, but you can ingest food and drink if you wish.
Instead of sleeping, you enter an inactive state for 4 hours each day. You do not dream in this state; you are fully aware of your surroundings and notice approaching enemies and other events as normal.
Languages. You can speak, read, and write Common, Binary, and one other language of your choice.
Subrace. There are two main sects of the Synthoids, Combat, and Service
Built for Battle: You gain a +1 bonus to your Strength Score, because of your hardened alloys.
Superior Darkvision: Your darkvision has a radius of 120 feet..
Relentless Endurance: 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.
Advanced Programming: Your programming has allowed you to seem more organic. You gain a +1 bonus to your Charisma score.
Natural Talker: You have proficiency in the Persuasion skill.
Linguist: You can speak, read, and write two additional languages