Talk:Black Cleaver/@comment-4885874-20120723171338/@comment-4881935-20120727054629

by doing this, there are also some lost that u seem not to be aware of, or just ignoring. I can't tell which,

But here's the point I will say.
 * Armor reduction benefits your entire team, unlike armor pen.
 * With armor reduction, you are making the enemy's armor lower so they take more physical damage from all source. With armor pen, it's just basically amplifying your physical damage (up to a point).
 * This gives it utility for the entire team (assuming you have more than 1 physical damage dealer)
 * Second, your suggestion wouldn't make it any better unless the damage amplifier was really high. First off, armor reduction is basically the same as amplifying damage, but done in a different fashion. And second, the reason why BC is not picked up offend is not because it's weak, it's just not as good as increasing one's damage compare to Last Whisper. Generally, it just doesn't have a way to fit in a build.
 * In a typical carry build, there is IE,PD, LW, boots, some form of lifesteal,  and then a defensive items.