Superb Song of the Valkyries: Symphogear S02 E06 A Miracle Is a Cruel Thing

"Meteoroids falling, burning, disappearing, and then..."

After being seriously injured by the Nephilim, Hibiki is unable to control her Symphogear. She flies into a rage, destroying the Nephilim and ripping out its heart. During the post-fight medical exam, it's discovered that if she continues to use her gear, she'll die.