Dretch

The dretch makes two attacks: one with its bite and one with its claws.

Melee Weapon Attack: +2 to hit, reach 5 ft.. Hit: 3 (1d6) piercing damage.

Melee Weapon Attack: +2 to hit, reach 5 ft.. Hit: 5 (2d4) slashing damage.

1 use per day. A 10-foot-radius radius of disgusting green gas extends out from the dretch. The gas spreads around corners, and its area is lightly obscured. It lasts for 1 minute or until a strong wind disperses it.
Any creature that starts its turn in that area must succeed on a DC 11 Constitution saving throw or be poisoned until the start of its next turn. While poisoned in this way, the target can take either an action or a bonus action on its turn, not both, and can't take reactions.