False Appearance. While the bunny remains motionless, it is indistingishable from a normal rabbit.

Feeding Frenzy. The bunny has Advantage on melee attack rols against any creature that is frightened.

Rabbit Stew. When the bunny reuces a creature to 0 hit points or causes it to be frightened, the bunny can take a bonus action to make a Standing Leap and then a bite attack.

Standig Leap. The bunny’s long jump is up to 30 feet and its height jump is 15 feet, with or without a running start.
             Additionally, the bunny doesn’t provoke opportunity attacks when it leaps out of   an enemy’s reach.

Vicious Streak. If the bunny jumps at least 15 feet as part of its movement and then hits it with a bite attack on the same turn, any creatures within 10 feet must succeed on a DC 20 Wisdom saving throw or be frightened for 1 minute. A frightened target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a target’s saving throw is successful or the effect ends for it, the target is immune to the bunny’s Vicious Streak for the nect 24 hours.

Bite. Melee Weapon Attack: +12 to hit, reach 5ft., one target. Hit: 32(7d6+ 8) [piercing] damage.