Air Shark

Blood Frenzy. The shark has advantage on melee attack rolls against any creature that doesn't have all its hit points.

sneak attack 4d6 

Has advantage against structures 

sky shark can cast invisibility as a action

Bite. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 32 (4d10 + 6) piercing damage.

Air Tailslap - creature makes a tail slap in the air causing 

• A wave of thunderous force sweeps Each creature in a 30-foot cube originating from you must make a Dexterity 18 saving throw. On a failed save, a creature takes 3d8 thunder damage and is pushed 20 feet away, they must make a Con saving throw 18 or be stunned for 1d4 turns. On a successful save, the creature takes half as much damage and isn’t pushed. In addition, unsecured objects that are completely within the area of effect are automatically pushed 10 feet away from you by the spell’s effect, and