Ambush Predator. The amphiptere is known to both hunt and ambush its prey. Therefore it has advantage on Stealth checks and Perception checks.

Camouflage: The amphitere can, as an action become invisible until its next attack.

Multiattack. The amphiptere makes one bite and two claw attack.

Bite. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit:  15 (3d6 + 6) piercing damage. 

Wing Attack. Melee Weapon Attack: +9 to hit, reach 20 ft., two target (one per wing). Hit: 16 (2d8 + 7) bludgeoning damage target is knocked prone unless they succeed on a DC 14 Constitution saving throw. 

Tail. Melee Weapon Attack: +9 to hit, reach 20 ft., one target (one per wing). Hit: 18 (2d10 + 7) bludgeoning damaged

The dragon can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The dragon regains spent legendary actions at the start of its turn.

Any Action Listed Above (Cost 1 Action).