Aarakocra Gyreguard

If the aarakocra is flying and dives at least 20 feet straight toward a target and then hits it with a melee weapon attack, the attack scores a critical on an 19 or 20.

If the aarakocra starts its turn grappled, it takes 9 (2d8) bludgeoning damage and has disadvantage on attack rolls until the beginning of its next turn.

The aarakocra doesn't provoke Opportunity Attacks when it flies out of an enemy's reach.

The aarakocra makes three attacks with its shocking claw.

Melee Spell Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (3d8) slashing damage. On a critical hit, the target is stunned until the beginning of its next turn.

Each creature within 120 ft. that is flying is pushed up to 15 ft. in a direction of the aarakocra's choice. Then, each creature in a 10 ft. radius, 100 ft. high cylinder within 120 ft. must succeed on a DC 15 Dexterity saving throw or take 22 (4d10) lightning damage, or half as much on a success.

As a reaction to taking damage from a melee attack, the aarakocra moves up to half its fly speed without provoking attacks of opportunity.