Skullian

Skullian are Arthropod Crustacean-like monsters from the  Sea Monsters  category.

Shell Boomerang
Skullian Ducks into his shell and launches himself at each party member, dealing damage.

Poison Claw
Skullian Clamps one party member for damage.May inflict Sap

Shell Shield
Skullian is fortified by its shell,raising its defense stat.Last for 3 of its turns.