Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 7 (1d8 + 3) bludgeoning damage and the target is grappled (escape DC 14). Until the grapple ends, the target is restrained, and the target must succeed on a DC 16 Constitution saving throw or become poisoned for 1 hour. While the target is poisoned, it is paralyzed. The riptide horror can have up to 6 creatures grappled with its six tentacles.