Trampling Charge. If the Wretched Warhorse moves at least 20 ft. straight toward a target and then hits it with a Hooves attack on the same turn, the target takes an extra 4 (1d8) bludgeioning damage. If the target is a creature it must succeed on a DC14 Strength saving throw or be knocked prone. If the target is prone the Wretched Warhorse can make another Hooves attack against it as a bonus action.

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