Glave Jump. If the Mutalisk hits a creature with it's Glave Worm it immediately makes another Glave Worm attack to another creature within 30ft, this attack deals half the damage of the previous attack. If this hits, you make a third attack on another creature within 30ft that deals 3 acid damage on hit.

Rapid regeneration. If the Mutalisk hasn't taken damage for a full round it regains 10hp.

Mutalisk Screech (Recharge 5-6). The Mutalisk lets out a deafening screech that can be heard up to 300ft away, any creature within 20ft of the Mutalisk must make a DC 10 Constitution saving throw or be stunned for one round. If a creature's saving throw is successful that creature is immune to that Mutalisk's screech for the next 24 hours. A creature that is deaf is immune to this attack.

Multiattack. The Mutalisk makes two attacks with it's wings.

Wing Attack. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 9 (2d4 + 4) Bludgeoning damage. 

Glave Worm. Ranged Weapon Attack: +6 to hit, range 30/60 ft., one target. Hit: 16 (2d6 + 4) Acid damage.