To fully answer your answer here is what the abilities do

Freekicks-score & assist
Penalties-score penalties (useless)
Corners-assist from corners
Playmaker-create clearcut chances
One on one-composure in front of goal, beat offside trap (useless)
Dribbler-make forward runs with ball
Shadow striker-shoots from distance
Defensive wall-blocks freekicks
Header-stops crosses
One on one stopper-reduces chances of goals being countered
Penalty stopper-stops penalties