The Other Army spell allows you to fight with the creatures of the NPC account "Summoned Army", commonly referred to as the Shade Army. A player gains no personal benefits, like stats or victories, from these fights as they would in other fights.

To cast, you just use the spell words that're set.

Similar to Mirror Ritual and Guardian Army you cannot fight NPCs such as the Loreroot Guards or Willow Shop Guards while under the effects of this spell.