The Armored Fiend, also knows as Giant Warrior, DemonSoldr and RedGiant, appears as an enemy in the game Final Fantasy IV. It can be found at the Lunar Subterrane and the Lair of the Father and gives a large sum of EXP upon defeat. In the Nintendo DS version, the Armored Fiend is weak against Lightning and may drop an extremely rare Black Tail, which can be taken to the Adamant Isle Grotto for a reward.