Gargoyle

Diving Pounce. If the gargoyle is flying and moves at least 20 feet straight toward a creature and then hits it with a Claws attack on the same turn, that target must succeed on a DC 13 STR save or be knocked prone. If the target is prone, the gargoyle can make one Bite attack against it as a bonus action.

False Appearance. While the gargoyle remains motionless, it is indistinguishable from an inanimate statue.

Multiattack. The gargoyle makes one Bite attack and one Claws attack.

Bite. _Melee Weapon Attack:_ +5 to hit, reach 5 ft., one target. _Hit:_ 10 (2d6+3) piercing damage.

Claws. _Melee Weapon Attack:_ +5 to hit, reach 5 ft., one target. _Hit:_ 8 (2d4+3) slashing damage.

Fearsome Mien. When a creature the gargoyle can see hits it with an attack, the gargoyle can shift its face to appear more monstrous. The attacker must succeed on a DC 13 WIS save or be frightened of the gargoyle until the end of its next turn.