This will sound weird, but while I think there are “better” songs by Holy Grail, I find “Call of Valhalla” to be a favorite of mine. It’s just this mid-tempo track, but I think it’s got a good groove, and yes I love the lyrics. All the Viking imagery is just fun, and the way James sings it is just powerful. Yes… you feel like you’re sailing in your longship to battle, and this is your battle hymn. 🙂