Talk:Garen/@comment-5414313-20120819001451/@comment-4929329-20120819014758

ArPen is actually an early game move. Flat AD is better than AD/lv because of the need for early gameplay.

Ex: As champions level up, they get more armor. Thus, as they accumulate more armor, % penetration is required. However, % penetration also reduces the effectiveness of your Flat ArPen.

This is why I like a good mix of ArPen and Flat AD. It means that your early-mid game is good, and late game you won't just fall off.