Multiattack

A Spawn of Arbeyach makes one bite attack and two stinger attacks.

Bite

Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) piercing damage plus 4 (1d8) poison damage.

Stinger

Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 7 (1d6 + 4) piercing damage plus 9 (2d8) poison damage. If the target is a creature, it must succeed on a DC 13 Constitution saving throw or be poisoned for 1 minute. A poisoned creature repeats the saving throw at the end of each of its turns, ending the effect on itself on a success.