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

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 can attempt to hide even when you are obscured only by a creature that is at least one size larger than you.

The Half-Koboldling has advantage on an attack roll against a creature if at least one of the Half-Koboldling's allies is within 5 feet of the creature and the ally isn't incapacitated.

Your Dexterity score increases by 1.

A monster with darkvision can see in the dark within a specific radius. The monster can see in dim light within the radius as if it were bright light, and in darkness as if it were dim light. The monster can't discern color in darkness, only shades of gray. Many creatures that live underground have this special sense.

You can read, write and speak Common and Draconic.