Strong Stroke

This is a Rogue Talent — a class feature gained through that class's own talent choices, not a feat you pick through normal feat selection.

(Ex) A rogue with this talent rolls twice when making Swim checks and takes the better result. If she already rolls twice while making a Swim check because of another ability or effect, she gains a +2 insight bonus on both of those rolls instead. If the rogue is under the effect of a spell or ability that forces her to roll two dice and take the worse result, she only needs to roll 1d20 while making Swim checks.