This is my entry for the Monnieverse phaver underwater superhero. 

Mikunade: The Tidebringer

Once a marine biologist, Mikunade discovered the legendary Trident Core deep in the ocean’s abyss, fusing her with the power of the seas. She gained the ability to control water, create tidal waves, and communicate with marine life. With unmatched speed and strength underwater, Mikunade protects the oceans from those who threaten its balance.

Her most powerful ability, the Tide Force, allows her to harness the moon's pull, controlling the ocean’s vast energy. Now, as the Guardian of the Deep in the Monnieverse, she fights to preserve both the ocean and surface worlds from destruction.