Bukumen Boss

Keen Smell. The Bukumen Boss has advantage on Wisdom (Perception) checks that rely on smell.

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

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

Multiattack.  The Bukumen Boss makes two attacks, one of which has to be a bite.

Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 3 (1d4+1) piercing damage.

Whip. Melee Weapon Attack: +5 to hit, reach 10 ft., one target. Hit: 4 (1d4 + 2) slashing damage.

Sling. Ranged Weapon Attack: +5 to hit, range 30/120 ft., one target. Hit: 4 (1d4 + 2) piercing damage.

Flee!  The Bukumen Boss can order all Bukumen within 15 ft to flee, allowing them to take a full movement without provoking an attack of opportunity as a reaction.  This ability can only be used once.  Recharges on a short or long rest.