Molten Nautilus

so Nautilus Falls into a blackspot in the ocean and turns into this monster.

but what if he fell into a blackspot in Lava? sure, there are questions like why the hell would you take a diving suit while going to volcano, well the answer is, because he can.

the main idea of this skin is to have a skin that is oppossed to Nautilus Classic theme skin, in this case, Water vs Fire, Sorta like Vel'koz and Varus skins, which got an Arclight Skins, to oppose their Dark Themed Classic skins.

anyways, i'm thinking of a look that's similar to Molten Rammus, with the Addition of the Fiery effect (Similar to Volcanic Wukong and Firefang Warwick)

or Maybe a Black Burning Armor? similar to the Warden's Armor? or a Brunt Diving Suit? with like a Crack on his Helmet that's showing one of his Red glowing Eyes.

and upon using your W, the fiery becomes intense for the duration.

his Walking Animation is Nautilus dragging his anchor behind him, Forever Sharpening it. you know, something to represent his "Burning" Hate for those who left him to die, and how he will never rest until he Takes Revenge.