So I was just reading Kael's and MC's description of Force over in the Lore Forum, and thought of a new idea for a new spell. Force III - Geas Can only be cast by an Archmage once. Grants the player one technology any one opponent has (assuming the player has the prerequisites). Basically, it would force a geas on a rival leader to share his or her secrets with you. It also fits thematically with balance and Dagda helping the underdog.