You are infused with luck, and your mere presence can spread good fortune.
Bit of Luck (Sp): You can touch a willing creature as a standard action, giving it a bit of luck. For the next round, any time the target rolls a d20, he may roll twice and take the more favorable result. You can use this ability a number of times per day equal to 3 + your Wisdom modifier.
Good Fortune (Ex): At 6th level, as an immediate action, you can reroll any one d20 roll you have just made before the results of the roll are revealed. You must take the result of the reroll, even if it’s worse than the original roll. You can use this ability once per day at 6th level, and one additional time per day for every six cleric levels beyond 6th.
Pathfinder RPG Core Rulebook. Copyright 2009, Paizo Publishing, LLC; Author: Jason Bulmahn, based on material by Jonathan Tweet, Monte Cook, and Skip Williams.