Keen Smell. The leucrotta has advantage on Wisdom (Perception) checks that rely on smell.
Kicking Retreat. If the leucrotta attacks with its hooves, it can take the Disengage action as a bonus action.
Mimicry. The leucrotta can mimic animal sounds and humanoid voices. A creature that hears the sounds can tell they are imitations with a successful DC 14 Wisdom (Insight) check.
Rampage. When the leucrotta reduces a creature to 0 hit points with a melee attack on its turn, it can take a bonus action to move up to half its speed and make an attack with its hooves.
Multiattack. The leucrotta makes two attacks: one with its bite and one with its hooves.
Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit:8 (1d8 + 4) piercing damage. If the leucrotta scores a critical hit, it rolls the damage dice three times, instead of twice.
Hooves. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit:11 (2d6 + 4) bludgeoning damage.
A leucrotta is what you would get if you took the head of a giant badger, the brain of a person who likes to torture and eat people, the legs of a deer, and the body of a large hyena, put them together, and reanimated them with demon ichor without bothering to cover up the stink of death.