Guardians of the Dark Crystals

The Guardians of the Dark Crystals are a group of recurring enemies and characters in the Final Fantasy series. They are Creatures sent by the Cloud of Darkness to protect the Dark Crystals and kill the Warriors of Light

Story
After the Death of Xande the Cloud of Darkness went to the World of Darkness to complete her plans of destroying both worlds with the powers of the The Void. When the Warriors of Light came to stop her she is too powerful for them to defeat her. So they went to search for the Warriors of Darkness to weaken her and find the Dark Crystal. The cloud of darkness order her guardians to guard the dark crystals and kill the warriors. The four guardians each associate with a element. Echidna (Final Fantasy III) guard the dark Water Crystal. Cerberus (Final Fantasy III) guards the dark Wind Crystal. Ahriman (Final Fantasy III) guards the dark Earth Crystal. The Two Headed Dragon guards the dark Fire Crystal Each time one is defeated by the Warriors of light, one of the Warriors of Darkness appear to help the warriors of light by giving them important information and weaken the cloud of darkness. Eventually all of the guardians and the Cloud of darkness got defeated from the combine power of both warriors of light and dark.

Final Fantasy
The Guardians of the Dark Crystals appear in the Dawn of Souls edition and the remake Final Fantasy. They reside in the Earthgift Shrine dungeon and it is available after the Warriors of Light defeat Lich.