Gatryon (5e Creature)
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Gargantuan monstrosity, lawful neutral
Trampling Charge. If the gatryon 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 16 Strength saving throw or be knocked prone. If the target is prone, the gatryon can make another attack with its hooves against it as a bonus action.
Multiattack. The gatryon makes two attacks with its hooves.
Hooves. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 26 (4d10 + 6) bludgeoning damage.
Gatryons are vast horse-like creatures with six legs and blue or purple manes that are occasionally used as mounts by giants, whose language they can speak. They sometimes lead herds of horses or run alongside centaurs, but amongst themselves, they organise by age and size, the oldest running at the head of the herd, and foals running alongside their parents.