Otyugh

The monster makes one attack and two attacks.

. , and the target has the Poisoned condition. Whenever the Poisoned target finishes a Long Rest, it is subjected to the following effect.
Constitution Saving Throw: DC .
Failure: The target's Hit Point maximum decreases by and doesn't return to normal until the Poisoned condition ends on the target.
Success: The Poisoned condition ends.

. . If the target is a Medium or smaller creature, it has the Grappled condition (escape DC ) from one of two tentacles.

Constitution Saving Throw: DC , by the monster.
Failure: damage, and the target has the Stunned condition until the start of the monster's next turn.
Success: Half damage only.