The Earth Elemental, also known as the Earth or Gnoma in the NES and PlayStation remakes respectively, is an enemy in the original Final Fantasy. It is weak to Fire, but is resistant against most other magical attacks. It is the strongest normal enemy in the Cavern of Earth, and it can be encountered several times guarding spaces or treasure chests:
Guarding right side of a chest, east of the entrance.
Guarding a space of two chests, southeast to the entrance.
Guarding the front of a chest that contains a Potion, southern from the entrance.
Guarding the front of two chests, in B3.
Guarding multiple spaces in the bat-filled room in the B3.
Later in the game, they appear in the "Lich Room", in the Chaos Shrine 2,000 years in the past.