• This monster is based on an Ammonite, a type of extinct nautiloid famous for its distinct bony shells, which are a common find at fossil sites.
  • This monster may also be based on the Nautilus, the living descendants of the Ammonite. This is hinted at by this card's name "Depth Gardna"– the Nautilus lives in the ocean deep, while Ammonites dwelled in the open ocean.

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