You gain 1 feat.

You gain proficiency in 1 skill of your choice.

Touch of Fate. Either the God-Emperor has spared you a thought or a dark entity of the Warp has touched your soul. Regardless of the reason, the universe itself protects as bolter shells and other extremis weapons have a tendency to miss you. A creature proficient with an extremis weapon (usually a space marine) has disadvantage on attack rolls using it when targeting you. While you possess this feature, you cannot wield extremis weapons without a class feature granting their use. In addition, once per short rest you can spend your reaction to have advantage on an ability check, attack roll, or saving throw, or choose to make a creature reroll a successful attack roll that targeted you.

 Your ability scores each increase by 1.

Humans reach adulthood in their late teens and live less than a century.

 Humans tend toward no particular alignment. The best and the worst are found among them.

Humans vary widely in height and build, from barely 5 feet to well over 6 feet tall. Regardless of your position in that range, your size is Medium.

Your base walking speed is 30 feet.

You can speak, read, and write Common and one extra language of your choice. Humans typically learn the languages of other peoples they deal with, including obscure dialects. They are fond of sprinkling their speech with words borrowed from other tongues: Orc curses, Elvish musical expressions, Dwarvish military phrases, and so on.