Dark One
The Tainted Dogma
Well, that's the beauty of the live form of Amon Amarth. You don't have to "get into" them at all. No need to own a CD or care about their lyrics. You can just show up without having heard a note of AA in your life (though some rudimentary knowledge about the mechanics of headbanging would be helpful) and be sent straight to Metal Valhalla.
The Mael Mordha effect, if you will.