Amphibian

Your ancestors were adapted to wet environments, both on land and in the seas of your home planet. Your people likely have large eyes and versatile skin systems useful for breathing underwater and secreting poisons.

Ability Score Increase. Your Dexterity score increases by 2.

Age. Your species ages slightly faster than humans do, reaching maturity around 15 solar years and living to be just 60-70 at the oldest.

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 can’t discern color in darkness, only shades of gray.

Poisonous Skin. When a creature successfully strikes you with an unarmed attack or engages you in a grapple, they take 1 point of poison damage for each point of damage they inflict. Your own unarmed attacks may deal poison damage (rather than bludgeoning) if you strike with an exposed part of your body.

Prefers the Damp. You suffer disadvantage on tool use skill checks when you are not in wet or humid environments. If you have a starship, you likely keep the ship or at least the cockpit set to these conditions.

Size. You are the shape of a typical humanoid, making you Medium size.

Speed. Your base walking speed is 30 feet.

Water Adapted. You have a swimming speed of 20 feet. You breathe underwater as normal.