My band is playing a show on the 24th, and we have decided that we are going to do an Immortal cover. This being our first show, we need something both playable and impressive. We're stuck between playing Grim and Frostbitten Kingdoms and Pure Holocaust. Which do you think we should play? (Doesn't have to be between the two, just list a song of theirs you think is good cover material). The setlist will be 4 of our own songs, and the cover.