Twilight a villain? I’ve been living under a rock.

Blueblood isnt an villian or the antagonist of “the best night ever” (BTW in advance, yes he can be a villian and the like in fanfics not saying he can’t be but in show cannon he’s just a pony that pissed rarity off for like what 1-3 hours max?).
 
There wasnt a main antagonist in that episode, it was more high hopes that were too high and unachivable and the crushing reality of failed dreams.
 
He just so happends to be the only one in the episode that can be said to be an antagonist due to being directly involved with one of the mane 6 and not living up to the high hopes of rarity (BTW again, she wanted a pony due to title and not for who he was so keep that in mind).

But… my book isn’t an antagonist either…
 
It’s a book! I just wrote it in my free time!
 
Stop hating on my poor book dammit!

@platypusmac  
the power of the alicorn amulet gave her a horn.

…isn’t Diamond Tiara an EARTH pony? What’s with the horn?

@FlutterLove  
No, sorry but she was not.  
Cease asserting your headcanon, or at the very least actually defend it.

@FlutterLove  
he’s a stuckup, so who really gives a feather?

Blueblood isnt really a villain if anyone was during Best Night Ever it was Rarity

Diamond Tiara as the next antagonist?
 
Makes sense to me.

What is this? I don’t even.