Your Dexterity score increases by 2.

A vessel reaches adulthood at the age of 10 and is lucky if they live longer than that as they’re adventurous. That tends to get them in lots of trouble or even killed

Vessel’s average about 3 feet tall and weigh about 40 pounds. Your size is Small.

Your base walking speed is 25 feet and a climbing speed of 10 feet

When you roll a 1 on the d20 for an attack roll, ability check, or saving throw, you can reroll the die and must use the new roll.

You have advantage on saving throws against being frightened.

You can move through the space of any creature that is of a size larger than yours.

You can speak, read, and write Common and abyssal. The abyssal language isn’t secret, but vessals are loath to share it with others. They write very little, so they don’t have a rich body of literature. Their oral tradition, however, is very strong. Before the collapse of their society almost all the vessels spoke abyssal except those above ground as they spoke and still speak Common to converse with the people in whose lands they dwell or through which they are traveling.