Poseidon Maelstrom

is the Noble Phantasm of Caenis.
Independent of whether they're on the ground or in the air, the target is crushed by super-massive ocean currents. It is a powerful offensive Noble Phantasm on its own, but if it is above the water or underwater, or in a situation in which there is a great amount of water nearby, the attack power is further increased.
It is a limited reproduction of a small portion of the Authority of the oceans possessed by the sea god Poseidon, and originally it's considered to have a superlarge area of effect, on the level of an Anti-Country Noble Phantasm or above.
Caenis used it to blow away over twenty autonomous weapons and Olympian Soldiers using flight Spells. Caenis was shocked she actually succeeded destroying all of them, and she states she believed it was going to take at least two or three shots.Fate/Grand Order: Cosmos in the Lostbelt - Olympus: Interstellar Mountainous City - Section 19: I Am the Thunder that Smites Stars (II)
==References==
Category:Noble Phantasms
Category:Anti-Fortress Noble Phantasms
Category:EX rank Noble Phantasms
Category:Anti-Ocean Noble Phantasms
Category:Noble Phantasms introduced in Fate/Grand Order
Category:Noble Phantasms of Caenis
Category:Divine Authorities