Tail Attack, Moonstrike, Big Wave
Immune to Status
Return, Confusion, Silence, Transform, Stop, Berserk, Paralysis, Stone, Slowly Stone, Manipulate, Death
Bottomswell is a large creature who floats above the water, does Tail Attack (attacks one character) as well as Moonstrike (attacks one character for more damage), Big Wave (attacks all characters, including Bottomswell, less damage on each than the one person attacks) and an attack that puts your character in a bubble, slowly draining life. Keep in mind that he's long range, so you'll be mostly using magic and your Choco/Mog summon.