Born to Run. The Earth Pony Mustang has advantage on saving throws against effects that restrain it or slow its movement. When it moves, it can treat up to 10 feet of difficult terrain as normal terrain. Vim & Vigor. Whenever the Earth Pony Mustang rolls Hit Dice to heal, it adds +2 to the result of each die. Whenever it gains temporary hit points, it adds +2 to the amount received. Stand Firm. The Earth Pony Mustang can make a DC 15 Strength saving throw to ignore effects that would force it to move or knock it prone.
Multiattack. The Earth Pony Mustang makes two attacks: one with its hooves and one with its bite. Hoof Attack. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 1d8 + 3 bludgeoning damage. Bite Attack. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 1d4 + 2 piercing damage. 10mm Pistol. Ranged Weapon Attack: +5 to hit, range 50/150 ft., one target. Hit: 1d10 piercing damage. The Earth Pony Mustang has 12 rounds of ammunition. Dash (Recharge 5-6). The Earth Pony Mustang can take the Dash action as a bonus action. If it moves at least 20 feet straight toward a creature and then hits it with a hoof attack on the same turn, that target must succeed on a DC 13 Strength saving throw or be knocked prone.