Is AU Celestia the most evil character in MLP?

[Rarity Paige Belle 1,853]

In issue 20 of the comics she attacks AU Luna for no good reason:

[Banul 3,831]

"You can't do that! This is a kids comic!" - Pinkie

 

Yeah, she seems pretty up there on the villainy scale. Those preview pages are looking epic.

Edited June 19, 2014 by Banul

[Scootalove 10,684]

Well, I haven't seen a villain actually attack someone who was on their side in the show, so possibly she is.

[Ashen Pathfinder 16,151]

...AU Celestia just went up a few ticks in my fav villains list. Woah!

[Forlong 1,725]

Considering how this mare reacted to King Sombra:

 

I'd say he's worse.  Yes, I'm assuming Sombra is a rapist.

 

Also, she had a very logical reason to attack Luna.  Since both Luna's are connected, she just hurt her as well, and gave Celestia motivation to go through the mirror.

Edited June 20, 2014 by Forlong