Aknosom

 Pirouette. When the aknosom makes a wing attack, it has advantage on Dexterity (Acrobatic) skill checks and Dexterity saving throws until the start of its next turn.

Multiattack. The aknosom makes one Peck attack and one Kick attack, or it makes two Wing attacks. 

Kick. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 6 (1d6 + 3) slashing damage.

Peck. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 12 (2d8 + 3) piercing damage.

Ram. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 16 (2d12 + 3) bludgeoning damage. If the aknosom moved at least 20 feet straight toward the target immediately before the hit, the target takes an extra 6 (1d12) bludgeoning damage. If the target is a creature, it must succeed on a DC 13 Strength saving throw or be knocked prone.

Wings. Melee Weapon Attack. +6 to hit, reach 5 ft., one target. Hit: 14 (2d10 + 3) slashing damage.

Fireball Barrage (Recharge 5–6). The aknosom chooses up to five creatures within 30 feet of it and spits a small fireball at each of them. Each creature must make a DC 14 Dexterity saving throw, taking 5 (1d10) fire damage and catch fire on a failed save or half as much damage and doesn't catch fire on a successful one. Until a creature takes an action to douse the fire, the target takes 5 (1d10) fire damage at the start of each of its turns.