Card Trivia:A Legendary Ocean
- Atlantis (which was also an ancient setting in the "Waking the Dragons" arc) is the name of a legendary island first mentioned in Plato's dialogues Timaeus and Critias. After a failed attempt to invade Athens, Atlantis sank into the ocean "in a single day and night of misfortune".
- This card is an upgraded form of "Umi".
- "Lemuria, the Forgotten City" is also similar to this card in that it's also treated as "Umi" and affects WATER monster's Levels, but increases them instead.