The Hold Audiencespell is a useful spell to have. It costs 1000 gold to cast, and transports all of your creatures (except Imps) straight to your Dungeon Heart. Your creatures will walk around your Heart, dancing and waving, for a short while before continuing on with whatever they were doing before. This spell is very useful for defending your Heart from attackers, and may work especially well for giving you an extra advantage when Armageddon begins. It can be useful offensively, allowing for an easier way to get your creatures together in order to use the Call to Arms spell.
