These quasi-living constructs are in the shape of ponies, but are not of the ponykind.
Ability Score Increase. Your Constitution score increases by 2, and your Intelligence score increases by 1.
Age. Steelhearts are abnormally long lived, and mature at the age of 50.
Alignment. Steelhearts have no predilection towards any alignment.
Size. Your size is Medium.
Speed. Your base walking speed is 30 feet.
Languages. You can speak, read, and write Common. You can also choose one language from the following list: Sylvan, Dwarven, Gnomish, or Terran.
Unique Heritage. Steelhearts count as half-constructs and fey for all purposes.
Four Legged. Being a four legged creature, you can bear greater weights (50%) than a human of the same strength without being encumbered. Any roll to avoid becoming prone is made with advantage.
Darkvision. You gain Darkvision 60 ft.
Heart of Steel. You gain advantage on saving throws against disease, and the charmed, exhaustion, and poisoned conditions. You have resistance to poison damage
Cold Heart. Any spell that would bring you to life cannot be cast unless it is in a functional factory, with added material components needed to enact physical repairs.
Iron Lungs. Steelhearts do not need to eat, breathe, or sleep. They may do so, if there is benefit, such as drinking a potion.
Conductive. You are resistant to lightning damage..
Fingerless. See fingerless rules.