fear aura. if a creature enters within 30ft of it that creature must make a dc 20 wisdom saving throw or be frightened.

legendary resistance(3/Day). if this creature fails a save it can choose to succeed instead.

Bag. as a action once a day this creature can add 3d6 bearded devils that is controls

multiattack. this creature can make 3 attacks two with its claws and one with it's Bag slam. or it can make a bag slam and a bag grab.

claw. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 15 (2d10 + 5) slashing damage.

Bag slam. Melee Weapon Attack: + 5 to hit, reach 5 ft., One target. Hit: 29  (4d12 + 6) bludgeoning damage. 

Bag grab. Melee Weapon Attack: +5 to hit, reach 10 ft., One target. Hit: target is restrained blinded and deafened and inside the bag each time it starts its turn in the bag can make a DC 23 strength saving throw to get out