You need to find the fire, lightning, light, and dark incantations to upgrade your elemental swords in Citadelle des Morts BO6 Zombies map.
Source: N4G PC How To Fully Upgrade All Elemental Swords in Citadelle des Morts
You need to find the fire, lightning, light, and dark incantations to upgrade your elemental swords in Citadelle des Morts BO6 Zombies map.
Source: N4G PC How To Fully Upgrade All Elemental Swords in Citadelle des Morts
