Canada Goose

Terrible Terror. The Canada Goose deals double damage to any frightened creature.

Relentless. If a creature is knocked down by Wing Buffet, the Canada Goose may use Terrifying Hiss as a free action.

Fierce Battler. The Canada Goose takes 3 (Actions or Bonus Actions) per turn.

Beak Slam. Melee Weapon Attack: +18 to hit, reach 10 ft., one target. Hit: 34 (4d12 + 10) bludgeoning damage.

Wing Buffet. Melee Weapon Attack: +18 to hit, reach 15 ft., one target. Hit: 40 (6d10 + 10) bludgeoning damage and the target must succeed on a DC 20 Strength saving throw or be knocked prone and grappled. If the creature is knocked down they have disadvantage on Wisdom saving throws until they stand up.  

Terrifying Hiss. As a bonus action, the Canada Goose of Legend can emit a supernatural hiss that terrifies all creatures within 100 feet of it. Each creature in that area must succeed on a DC 20 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. 

Reactive Peck. In response to being hit by a melee attack, the Canada Goose can make one beak slam attack against the attacker. If it hits the attacker must succeed a DC 15 STR or DEX saving throw or be disarmed.

Reactive Honk. In response to being hit the Canada Goose can honk and flap its wings moving up to half its flight speed and halfing the damage it took from the triggering attack. This movement cannot trigger opportunity attacks.