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  • This card's Japanese name, "Mother Brain", is likely a reference to Metroid, a popular Nintendo Game.
  • The smaller fish seen in this card's artwork are featured in the artwork of "Fish Depth Charge". On closer inspection, it seems that they are even docked along this monster's body (the blue shapes embedded along its lateral line).
  • This card appears to be a stronger version of "Ocean's Keeper", having a similar color scheme to it, looking like it and the effect of "Ocean's Keeper" makes it seem like it transforms into this monster.
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