Chieftain

Brute. A melee weapon deals one extra die of its damage when the chieftain hits with it (included in the attack).

Chieftain's Presence. Dragons and kobolds within 30 feet of the chieftain can't be charmed or frightened.

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

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

Multiattack. The kobold makes three Spear or Shortbow attacks.

Spear. Melee or Ranged Weapon Attack: +6 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 11 (2d6 + 4) piercing damage, or 13 (2d8 + 4) piercing damage if used with two hands to make a melee attack.

Shortbow. Ranged Weapon Attack: +4 to hit, range 80/320 ft., one target. Hit: 5 (1d6 + 2) piercing damage plus 7 (2d6) poison damage, and the target must succeed on a DC 12 Constitution saving throw or be poisoned for 1 minute. A poisoned creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Inspiring Shriek (Recharge after Short or Long Rest). The kobold chieftain shrieks a draconic battle cry. Each creature that isn't a dragonborn or kobold within 30 feet of the chieftain must succeed on a DC 14 Wisdom saving throw or be frightened for 1 minute. A frightened creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.

Springspike Shield. When the kobold chieftain is wielding its shield and is hit by a melee attack within 5 feet of it, the chieftain can fire one of its shield spikes at the attacker. The attacker takes 5 (2d4) piercing damage.