I have fond memories of using Blinding Light in arenas with Arcane Torrent, Rebuke, and Fist of Justice to just shut down enemy healers for an absurd amount of time. No wonder it got nerfed.
Don’t forget to login soon to reclaim your free Warcraft movie transmogs! Even if you don’t plan on seeing the movie, the transmogs look great and should fit in well to anyone’s collection. 😀