These contracts appear in full on page 41 of Lords of Summer.
This clause is revised to be a little more potent and a little harder to abuse with impunity.
This clause can only be invoked once for each project or creative work: painting a portrait, creating a song, writing a novel, etc. The task must rely on an Extended test lasting more than one scene which does not benefit from the Rote quality. The contract’s blessing lasts for up to a week, or until the task is over. Each additional attempt to use this clause on the same person within 7 days adds a cumulative -1 penalty to the activation roll.
The blessing’s bonus is increased from +1 to half of the rolled successes (round up).