VIDEOS:
Tree of Harmony saved
The Elements of Harmony are returned to the Tree of Harmony from which they came, which recharges the Tree and reignites its magic, undoing all the thorns and freeing Celestia and Luna.
Example of:
World-Healing Wave
Six locks, six keys!
Example of:
Sequel Hook
Nightmare Moon's Banishment
Example of:
Dreaming of Times Gone By