It was the Canterlot Wedding for Cadance and Shining Armor. Until Twilight showed up with Princess Cadance? Then it was shown that Queen Chrysalis was disguised as Princess Cadance to feed off of Shining Armor's love. You tried stopping her but she was too strong since the love she got off of Shining Armor made her stronger then you. But this couldn't be how it ends. You have to protect Equestria, your student and your sister Luna. Suddenly you changed as your mane was on fire, your eyes changed. You didn't give into the anger. Just enough to turn into Daybreaker.

Queen Chrysalis: "Oh? What is this? A new look Celestia? How pathetic. You and all of Equestria will soon be ruled by me. So just give up."