The Crystal Tome

At the beginning of your opponent's turn, select one enemy CHARACTER model within 12" of a model with this Relic. You and your opponent then roll off; your opponent adds the Leadership characteristic of their model to the result, and you add the Leadership characteristic of the model with this Relic to your result. If your total equals or beats your opponent's, then all aura abilities that their CHARACTER model has cannot be used until the beginning of your opponent's next turn.