The stones that spriggans bear are magical batteries from which they draw their strength. Bloodless soulkin, spriggans seem to have no will to live without these stones and live their lives controlled by their attachment.
Although spriggans are spread across many areas of Eorzea, they had never before seen outside that realm until recently. Some spriggans have been transported out of Eorzea and have come to infest Vana'diel. Moogles appear to be able to converse with the quixotic creatures, but what could the spriggans possibly want?