When you damage a creature with an attack or a spell and the creature's size is larger than yours, you can cause the attack or spell to deal extra damage to the creature. The extra damage equals your level. Once you use this trait, you can't use it again until you finish a short or long rest.

Dex+2 cha+1

You have advantage on Charisma (Persuasion) checks against creatures that are larger than you. However, you have disadvantage on any Charisma (Intimidation) 

A rabbit-person reaches adulthood at the age of 8 and generally lives into the middle of a century

Most halflings are lawful good. As a rule, they are good-hearted and kind, hate to see others in pain, and have no tolerance for oppression. They are also very orderly and traditional, leaning heavily on the support of their community and the comfort of their old ways.

Rabbit folk average about 3 feet tall and weigh about 40 pounds. Your size is Small.

Your base walking speed is 30 feet.

You have 1 luck point, as if having the Lucky feat. (See Lucky on pg. 167 of the Player's Handbook) This point counts as an additional luck point received from the Lucky feat, if you have taken the Lucky feat.

You can speak, read, and write Common and Halfling. The Halfling language isn’t secret, but halflings 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. Almost all halflings speak Common to converse with the people in whose lands they dwell or through which they are traveling.