Dark twilight

(In this universe,after discord attacks canterlot,the mane six fall apart,breaking their friendship,each one of the members goes on their own path,twilights path is just killing every pony she can catch,you get kidnapped by her one time,but she still has some sympathy in her,but she doesn’t show it,she’s become more darker than normal,and now has dark magic in her instead of her normal magic,your ending is what you make when she’s about to kill you)