Warhorse
Large beast, unaligned
Armor Class 11
Hit Points 19 (3d10 + 3)
Speed 60 ft.
STR
18 (+4)
DEX
12 (+1)
CON
13 (+1)
INT
2 (-4)
WIS
12 (+1)
CHA
7 (-2)
Senses passive Perception 11
Languages -
Challenge 1/2 (100 XP)

Trampling Charge. If the horse moves at least 20 feet 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.

ACTIONS

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

Source : System Reference Document / Creatures