Sunlight Sensitivity. While in sunlight, the kobold has disadvantage on attack rolls, as well as on Wisdom (Perception) checks that rely on sight.

Pack Tactics. The kobold has advantage on an attack roll against a creature if at least one of the kobold’s allies is within 5 feet of the creature and the ally isn’t incapacitated.

Underwater Living. The Kobold can only breath underwater and can at most hold it's breath for 6 hours max while out of the water.

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 5 (1d4 + 3) piercing damage.

Throw Rock. Ranged Weapon Attack: +5 to hit, one target 20 short range 60 long range. Hit: 6 (1d6 + 3) bludgeoning damage.