VS Lefty
From MLB Power Pros Wiki
"In Game Description Here"
Description
Vs Lefty ability affects power and contact against left-handed pitchers. With Vs Lefty 3 being the default, Vs Lefty 4 and 5 will boost power and contact against left-handed pitchers, while Vs Lefty 1 and 2 will reduce them.
This ability is independent of the batter's handedness and will affect left-handed and right-handed batters alike. In professional baseball, left handed pitchers are less common, so batters naturally have less experience against these types of pitchers.
