Nervous Energy. If the Monstrous Pony becomes Frightened, it is not subjected to the typical effects of the Frightened condition. Instead, for the duration of the Frightened condition, the pony takes no actions except Dash, Dodge, or Disengage, and its movement speed is doubled. Each time the pony moves more than 80 feet during its turn while it is frightened in this way, any creature riding the Monstrous Pony must succeed on a DC 12 Wisdom (Animal Handling) skill roll or Dexterity saving throw (their choice) or fall Prone. While it is frightened in this way, the Monstrous Pony cannot be Paralyzed, Petrified, Stunned, Incapacitated, or Grappled, due to the terrific energy with which the monstrous creature resists.

Monstrous Pony Hooves. Melee Weapon Attack: +12 to hit, reach 20 ft., one target plus up to three others within 5 feet of that target. Hit: 42 (3d20 + 11) bludgeoning damage.

Mobile By Association. While touching a creature which has a Burrow, Climb, Fly, Hover, or Swim speed, the Monstrous Pony has a movement speed of that type, equal to its walking speed.