Heaven & Hell (Black Sabbath w Dio) - Molson Amphitheatre

Dungeons, wizards, and dragons. Although these metal legends weren't led by Ozzy, rather by the elfin Ronnie James Dio, it was still like witnessing a piece of music history. Dio-period Sabbath is classic. Gargantuan riffs/soloing by Tony Iommi, headstrong vocals by Dio, with a set starting with Mob Rules and ending with Neon Knights. Being graced by these legendary forefathers of metal was a humbling experience. Just ask the headbanging masses.