Amphibious. The aberrant couple can breathe air and water.

Till Death Do We Part. The aberrant couple has advantage to attacks against a target they successfully hit on their turn.

Horrid Tentacle. reach 20 ft. Target creature must do a DC 14 Dexterity saving throw or be pulled towards the couple.

Lover's Embrace. The couple has advantage against strength and constitution saving throws.

Crush Charge. reach 15 ft. DC 16 Constitution saving throw or the creature will be knocked back 10 ft. prone and take 2d8 bludgeoning damage, half damage on success.

Multiattack. The couple makes three attacks, two claws and one bite.

Crab Claw. Melee or Ranged Weapon Attack: +5 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 12 (2d6) piercing damage. The claw can be launched to a target and will not be usable again after 1 day. On a successful hit, the target must do a DC 14 Strength saving throw or be grappled.

Circe's Bite. Melee Attack: +4 to hit, reach 5 ft., one target. Hit: 12 (2d6) piercing damage. On a successful hit, target must do a DC 15 Constitution saving throw or be poisoned for 1 minute and take an additional (1d8) Poison damage.

Opportunity Attack. The couple can make an attack towards the creature that does moves away from them.