helm of awe aegishjalmur or egishjalmur galdrastav icon set grey black color outline flat style simple image

aegishjalmur amulet ancient awe black celtic charm culture danger egishjalmur evil fear gapaldur gothic grey helm icon knot knotwork magic magical military mystic mystical nordic norse occult odin old outline pagan protection rock rune scandinavian scary set shield sign skull symbol talisman thor vegvisir viking warrior witchcraft