Mega Fortress Whale - Yugipedia - Yu-Gi-Oh! wiki

It's not floodgates its control : r/masterduel

Dreadnought Suship - Roe-class First Wardish by AlanMac95 on DeviantArt

I HEARD you wanted a searcher for your Torrential Tribute searcher..

Fortress Whale (ROD) - Yugipedia - Yu-Gi-Oh! wiki

Cosmic Ocean - Yugipedia - Yu-Gi-Oh! wiki

Orca Mega-Fortress of Darkness - Yugipedia - Yu-Gi-Oh! wiki

A Legendary Ocean - Yugipedia - Yu-Gi-Oh! wiki

Cards whose names are just their archetype name(s) : r/yugioh

Legendary Duelists: Duels from the Deep 1st Edition Single Card

Mega Fortress Whale - LED9-EN016 - Ultra Rare 1st Edition

Mako Tsunami (Duel Generation) - Yugipedia - Yu-Gi-Oh! wiki

Fortress Whale, Yu-Gi-Oh! Wiki

I was wondering if there were more cards that fell into the heavily armored marine mammals category? : r/yugioh

A single card from the set Legendary Duelists: Duels From the Deep

Mega Fortress Whale - LED9-EN016 - Ultra Rare - 1st Edition