Zagreus, the god of decadence, pale skin, blue robes, sailor clothes, underworld clothing, zagreus, the divine marshmallow god zagreus, as the god of decadence, is revered for his association with indulgence and extravagance. ambrosia, resembling marshmallows, is considered the epitome of decadent treats. zagreus is both the guardian and the source of this divine confection, bestowing it upon mortals to experience the ultimate in culinary pleasure.