YMMV / My Little Pony Friends Forever Issue 28

• Alternate Character Interpretation: Was the Mirrorca really as dangerous as made out to be, or did Luna kill a creature that wasn't (and perhaps incapable of) causing any harm if it were just left be?
• Nightmare Fuel: The Mirrorca. Not helping are: (1) it being explicitly said to be made of chaos magic — i.e., what Discord uses — (2) its eventual Family-Unfriendly Death, and (3) it also being explicitly said that it's not the only Eldritch Abomination imprisoned deep within Canterlot Castle.