Surefooted. A donkey has advantage on all Dexterity checks preventing it from falling prone.
Multiattack. The Donkey can make two attacks one with its front Kick or bite, and one with its rear kick.
Bite. Melee Weapon Attack: +2 to hit, range 5 ft, one target in front of the Donkey. Hit: 1-3-6 1d6 Piercing Damage.
Front Kick. Melee Weapon Attack: +1 to hit, range 5 ft, one target in front of the Donkey. Hit: 2-4-7 1d6+1 Bludgeoning Damage. The target must succeed on a DC 10 Strength Saving throw or be knocked prone.
Rear Kick. Melee Weapon Attack: +0 to hit, range 5 ft, one target behind of the Donkey. Hit: 2-4-7 1d6+1 Bludgeoning Damage. The target must succeed on a DC 10 Strength Saving throw or be knocked prone.