At-will, free; you calculate the exact probability of a specified outcome of a probabilistic event in your immedate context. For instance, during a game of Blackjack, you could calculate the exact odds of drawing a card sufficient to reach 21 or less.

• You may use this ability to calculate the odds of a successful action in combat, such as an attack. In effect, this ability grants you knowledge of enemy's AC, save bonuses, and spellcasting skill modifiers.