Dumbledore BEAT Grindelwald in their epic duel in 1945..So that means he HAS TO BE more powerful..Right? Well, not exactly.Today we’re going to be taking a closer at a debate as old as time: Who is more powerful? Albus Dumbledore or Gellert Grindelwald? The answer might surprise you.Learn more about your ad choices. Visit megaphone.fm/adchoices