How powerful is the Magic of Friendship?

Hint: It is the most powerful magic of all the Equestria and not any monster trying to take their magic and use it against the alicorns can understand.
Celestia đã đưa ý kiến during the marriage celebration between Shining Armor from Canterlot and Princess Mi Amore Cadenza from Crystal Empire: 'Their power of tình yêu undeniable.'