Lest one think MASTODON could get away with releasing the most epic ice age-themed metal video of the year, AMON AMARTH are back with the second video from their latest anthem-emitter, Twilight of the Thundergod. This time, it's "Guardians of Asgaard," and it lives up to Amon Amarth's ass-kicking standards by featuring medieval dudes battling in the snow, a cave that erupts flame geysers and an appearance by ENTOMBED's LG PETROV. Like you'd expect anything less.