You re-work the layers of probability around you, allowing you to influence many events. You may only Cast this Spell if your dice reserve is currently empty.

Roll two ten-sided dice per Level, and place them in your dice reserve. Whenever any creature makes a Skill check and has either favour or slight on the dice, you may, as a free action, place one die from your reserve on the table as one of their additional dice rolled for favour or slight.