Startling Charge. If the deinocheirus moves at least 20 feet toward a creature and hits it with a claw attack on the same turn, that target must succeed on a DC 17 Strength saving throw or be stunned until the end of its next turn and knocked prone.
Multiattack. The deinocheirus makes four attacks: one with its bite, three with its claws. Bite. Melee Weapon Attack: +11 to hit, reach 10 ft., one target. Hit: 28 (6d6 + 7) bludgeoning damage. Claw. Melee Weapon Attack: +11 to hit, reach 10 ft., one target. Hit: 20 (3d8 +7) slashing damage. If the target is medium or smaller, it is pushed 5 feet away from the Deinocheirus in a straight line.