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

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

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

Catch of the Day - Yugipedia - Yu-Gi-Oh! wiki

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

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

Gallery of Yu-Gi-Oh! Forbidden Memories cards (North American English) - Yugipedia - Yu-Gi-Oh! wiki

Fortress Whale (manga), Yu-Gi-Oh! Wiki

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

Favorite Monsters? : r/yugioh

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

what yu-gi-oh dragon type monster is also a parrot??? : r/masterduel

Fortress Whale (manga), Yu-Gi-Oh! Wiki