Multiattack

3 Bites or Slams and 2 Whips. Can replace 1 Bite with Trap.

Bite

Melee Weapon Attack: +9 to hit, 5 ft., one creature,. 18 (3d8+5) piercing damage.

Slam

Melee Weapon Attack: +9 to hit, 10 ft., one creature,. 15 (3d6+5) bludgeoning damage.

Tendril Whip

Melee Weapon Attack: +9 to hit, 20 ft., one creature,. Target grappled (escape DC 16). Until grapple ends target restrained stargazer can't use same tendril on another. Tendril destroyable (AC 10; hp 20; immune to poison and psychic). Destroying tendril doesn't damage stargazer.

Wing Trap

If it has no creatures trapped snaps its appendages shut. Each creature within 5 ft. of it: 14 (4d6) bludgeoning damage and trapped ending grapple if grappled (DC 16 Dex half damage not trapped). Creature grappled by stargazer: disadvantage on the save. Trapped creature blinded restrained has total cover vs. attacks and effects outside stargazer and takes 10 (3d6) bludgeoning damage at start of each stargazer turn. Trapped creature can take its action to escape by making a DC 16 Str check. Stargazer can have up to 2 creatures trapped at a time. While it has 1+ creature trapped can't burrow and can't Bite creatures outside its Wing Trap.