Everything sounds better when you add "but everything changed when the fire nation attacked" at the end of a sentence.

Harry Potter:

Mr. and Mrs. Dursley, of number four, Privet Drive, were proud to say that they were perfectly normal, but everything changed when the fire nation attacked.

The Hunger Games:

When I was younger, I scared my mother to death, the things I would blurt out about District 12, but everything changed when the fire nation attacked.

Game of Thrones:

The morning had dawned clear and cold, with a crispness that hinted at the end of summer, but everything changed when the fire nation attacked.

Edgar Allan Poe:

'Tis some visitor,' I muttered, `tapping at my chamber door' but everything changed when the fire nation attacked.

The Bible:

In the beginning God created the heaven and the earth, but everything changed when the fire nation attacked.