Elements of Harmony

six supernatural artifacts which are arguably the most powerful force in Equestria, though the extent and nature of their power are largely unspecified.

4
The Tree of Harmony presented The Harmony Box as a result of being confronted by all of the bearers of Elements of Harmony, and the controllers of the sun and moon.

3
Elements of Harmony are advanced technology created by a civilization that inhabited the world before the Ponies.

2
The Harmony Box contains upgraded versions of Elements of Harmony.

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The Tree of Harmony and the Elements of Harmony were created by Ponies thousands of years ago.

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Nightmare Moon is actually her normal form. Princess Luna is her "powered down" form due to the use of the Elements of Harmony.

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