The Elements of Harmony are six supernatural artifacts representing subjective aspects of harmony. The narration during the prologue of Friendship is Magic, part 1 describes the Elements of Harmony as "the most powerful magic known to ponydom". In Princess Twilight Sparkle - Part 2, it is revealed that the Elements of Harmony were found and taken from the Tree of Harmony by Princess Celestia and Princess Luna thousands of years ago. However, doing so had the potential to release the Everfree Forest and destroy Equestria. Each artifact represents an element of friendship and can only work if wielded by one who possesses the corresponding trait and if all six are used in conjunction. They have been wielded on rare occasions, particularly during events marked by danger and anarchy as a last resort to restore and enforce the balance of peace and order. However, the effects of their use are generally temporary and non-lethal, usually a form of banishment or imprisonment.