solirocket said:
the guy? please tell me you know its ibra

ill give you some explanations for the vague skills to the best of my knowledge, some might be wrong:

change of pace: the player will run faster when he is tackled. you can see that by watching a player who has that skill combined with a good dribbling avg

running with the ball: the player will usually run towards empty space to get more ground for your team. for example, if there is an opponent a but further front, he will run diagonally.

steel lung: it helps keep stamina high. (this isnt based on my experience, but i read it somewhere i think)

aerial play: i dont think it means offensive or defensive. i havent seen any header goals until now in this sim. it just means that the player will be more likely to get possession of high balls. players usually get the ball to the ground first then shoot/pass...or they just head it forward in defensive positions or when the ball is in the middle of the field.

lunging tackle: better slide tackling

defensive wall: better at intercepting passes