Triceratops

Defensive Gore. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 24 (3d12 + 5) piercing damage and the target has disadvantage on the next attack it makes against the triceratops before the end of the triceratopss next turn.

Trample. The triceratops moves up to its speed in a straight line. It can move through the spaces of Large and smaller creatures. Each of these creatures makes a DC 14 Dexterity saving throw taking 21 (3d10 + 5) bludgeoning damage on a failure.