Hive Intelligence. Int. is increased by +1 for each Ya'eesh form within a 100 ft. radius.

Swarmers. The swarmer has advantage on an attack roll against a creature if at least one other swarmer is within 5 feet of the creature and the other swarmer isn't incapacitated.

Hive Call. The Swarmer lets out a blood curdling scream that alerts near by Ya'eesh forms. All forms within a 300 ft. radius are alerted to your presence and actively hunt you down. All forms in a 100 ft. radius rush in to join the fight.

Bite. Melee Attack: +2 to hit, reach 5 ft. Hit: 1d4+1 piercing damage.

Leaping Bite. Melee Attack: +2 to hit. Hit: 1d6+1 piercing damage. 15 ft. running start required for this attack.