Blue Kobold

Ice Absorption. When this kobold takes cold damage, that damage turns into temporary health.

Cold Habitat. If it is snowing, the kobold has advantage on all saving throws, and all of the damage it takes is decreased by 2.

Ice Breath. The kobold breathes frozen air in a 30 ft. straight line, The target must succeed on a Constitution saving throw. On a fail, the target takes 2d4 cold damage. On a success, the target takes 1d4 cold damage. The Blue Kobold can only use this once per short rest.

Knife. Melee Weapon Attack: +3 to hit, reach 5 ft., 1 target. Hit: 3 (1d6) [Peircing] damage. 

Ice shard. Ranged Weapon Attack: -1 to hit, range 80/320 ft., 1 target. Hit: 3 (1d6) [Cold and Peircing] damage.

Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., 1 target. Hit: 2 (1d4) [Peircing] damage. 

Counterattack. Every 3 turns, the Blue Kobold can use Knife. This is activated when the Blue Kobold takes melee damage.