thors hammer - mjolnir and oak leaf ornament

amulet ancient asgard barbarian berserk celtic circle decoration design druid edda foliage forest gods gothic heathen hero illustration jormundgand leaf lightning mjollnir mjolnir mystic mythology nature nordic nordland norse oak odin pagan pattern poetic ragnarok ring scandinavia sign style symbol thor tree valhalla vector viking vintage warrior wicca wotan