Rogues Opportunity: Fortune favors the rogue whose quick enough to seize it. As a swift action, a rogue can seize on fortune’s favor, giving him a +1 luck bonus on attack rolls, saving throws, skill checks, and weapon damage rolls. He can use this ability for a number of rounds per day equal to 4 + his Dexterity modifier. Maintaining this bonus is a free action, but it ends immediately if the rogue is killed, paralyzed, stunned, knocked unconscious, or otherwise prevented from taking a free action to maintain it each round. Rogue’s Opportunity is treated as bardic performance for the purposes of feats, abilities, effects, and the like that affect bardic performance. Like bardic performance, it cannot be maintained at the same time as other performance abilities. This bonus increases to +2 at 5th level, +3 at 11th level, and +4 at 17th level. A rogue may expend rounds of Rogues Opportunity to gain an additional use of a rogue talent that has limited uses per day.
basically its Archaeologists luck with the added benefit of being dex based and allowing additional uses of limited use rogue talents. this isn't the only changes im making(turnings rogues into a strong 5th wheel support class for homegames).