Fidelity

Fidelity are third sphere archangel which are on the eight rank of the hierarchy of Laguna, the chain of command of the Angels of Paradiso. It is squid-like in appearance and is able to fight on land but are better fighter underwater. They represent the origin of all life and impart human with there primeval memories, they are said to punish those who disrupt the serenity of the ocean life by dragging them in the depths of the ocean. In battle, it attacks with the blades of energy comming out of its five tentacles and can use mines while floating in mid-air.

Bayonetta 2
They are introduced during Chapter IV where they are initially fought on land before appearing in water in the later chapters and in the Muspelheim challenges. Like other enemies in the game, they also appear in Tag Climax after their card is unlocked.

Hierarchy of Laguna
"Considered a creature of the sea due to its fish-like body and multiple tentacle-like arms, Fidelity departed from the ocean to impart humanity with their primeval memories. Those who forgot their past and begin to disrupt the serenity of life are often dragged by this angel to the darkest depths of the ocean. The ocean is a sacred place, the area of Earth that is closest to Paradiso, as the intense water pressure of the depths means it has remained untouched by human hands since the beginning of time. A large celestial veil covers the sea's expanse, and until this day there has never been a human who has witnessed the seas in their entirety."