User blog comment:TheFreddyFromThePizzaria/Equestria in Peril-The Witch Theory (By Sunlight Sparkle!)/@comment-26186871-20161123210030

It looks like Sunlight Sparkle has an addition to her theory! Here it is!

"So, the Crystalling process comes from the power of the Crystal Heart, and yet it ALSO GIVES power to the Crystal Heart at the same time. We know the former is true because that happened at the end of the heroes' defeat of King Sombra, and the latter is true, because we know this happened with Princess Flurry Heart's Crystalling. What a paradox! Something ELSE must be powering them BOTH. But WHAT? This magic is will be a huge part of my King Sombra theory."