To avoid having to associate with spellcasters themselves, many lords and nobles employ magical items to give them an edge on the battlefield. To balance the game, a conscious decision has been made to make the player (and most of the AI) unable to spam magic, and keep magic a rare once-per-battle trick that might help win the battle, but will not win the battle on it's own. A powerful Magic Item created by the Nurgle-worshipping tribes of the Hung, the ring creates a powerful blast of diseased fog, and open a portal into the Garden of Nurgle.