The Crystalbug is a fiend/crystalbug-type enemy from Final Fantasy XII. There are only three Crystalbugs in the game, a red, blue, and green one. The player can steal Feystones from it, needed for making High Arcana. The first mention of such a creature comes from the moogle merchant Tetran, who mentions a creature that mimics that of crystals. The red Crystalbug disguised as a Gate Crystal can be found in the Succor Midst Sorrow area in the Nabreus Deadlands and becomes an actual Save Crystal when defeated.