Multiattack

The otyugh makes two tentacle attacks.

Tentacle

Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 7 (1d8 + 3) bludgeoning damage plus 4 (1d8) piercing damage. If the target is a Medium or smaller creature it is grappled (escape DC 14) and restrained until the grapple ends. The otyugh has two tentacles each of which can grapple one target and can't attack a different target while doing so.

Tentacle Slam

The otyugh slams any creatures it is grappling into a hard surface or into each other. Each creature makes a DC 14 Strength saving throw. On a failure the target takes 10 (2d6 + 3) bludgeoning damage is stunned until the end of the otyughs next turn and is pulled up to 5 feet towards the otyugh. On a success the target takes half damage.