Evil, or rather that which is commonly dubbed ‘evil’, is a necessity for the functioning of all life, including ponykind. That’s not to say it shouldn’t be fought against when it occurs in excess, but its elimination should never be sought.
*The castle was shaped by magic as old as Equestria itself. It is shaken, but not destroyed, by the enemy’s attack.
Nightmare Moon teleports onto the Titan’s superstructure. She raises her horn, and the total remaining power of the Titain’s plasma reactor is drained into it, shutting it down. Nightmare Moon’s horn glows as brightly as the sun with the newly gained power.*
*Nightmare Moon’s voice booms over the battlefield.* NOW, FEEL THE TRUE FURY OF A GOD!
*She begins pouring the captured energy into a spell. The CCU’s sensors read a massive spacial fluctuation forming…*
Yes. The battle is not going well for Us, and We will have to take the battle to the enemy personally in a moment. We would like you to lead the second wave. Look for Our sign, then attack. *She teleports herself to the Titan, leaving Vriska in charge of her army.*
*Nightmare Moon is loudly arguing about something with her technician, and doesn’t notice Twilight either.*
Perhaps in your native universe, but on the larger scale there are an infinite number of pantheons, containing an infinite number of deities.
As for whether We are a deity, We display 12 of the 14 Accepted Signs of Divinity. Take from that what you will.
The battle is already lost. We will have to intervene personally.
You can assist with the mop-up operation, if you’d like.
Hello, Greg. What topic can We enlighten you about?
*Nightmare Moon walks into the throne room, in heated discussion with a technician. She doesn’t notice Applebloom.*
Family? That is a complex question… *She ponders it carefully for a moment.*
We suppose it depends on how one defines ‘family’. Some claim Celestia is Our family, but We hate her, and she hates Us. And while We love Luna, others claim We are nothing but a parasite to her.
We suppose We could call you family, whatever that means. If you want.
We do not wish to move Our queendom formally out of Equestria, as that may reduce the legitimacy of Our claim to the throne. We would gladly annex the Griffon Kingdom, however.