Angmairotalas (Iron Hoofs)

Keen Senses. The horse has advantage on perception checks that rely on hearing and sight. 

Evasion. If the horse is subjected to an effect that allows it to make a Dexterity saving throw to take only half damage, the horse instead takes no damage if it succeeds on the saving throw, and only half damage if it fails. 

Trampling Charge. If the horse moves at least 20 ft. straight toward a creature and then hits it with a hooves attack on the same turn, that target must succeed on a DC 14 Strength saving throw or be knocked prone. If the target is prone, the horse can make another attack with its hooves against it as a bonus action.

Fey Ancestry. The horse has advantage on saving Throws against being charmed and magic cannot put it to sleep. 

Hooves. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) bludgeoning damage.