Talk:Armor penetration/@comment-81.227.9.138-20121229231636/@comment-75.133.147.122-20121231012449

That is with a full rune page of armor pen and 3 items, none of which even slightly tanky. Is the math right? Yes, it would appear to be. However, a melee with that much physical emphasis isn't going to last long enough.

For a comparison, dropping the Xin Passive and using this on any random character gives this:

.65 * .75 = .4875

x * .4875 = 54

x = 54/.4875 = 110.77 Armor

That's not a crazy drop, and any melee character can do it (any character really, but ranged aren't going to want Youmuu's...). The thing is that turning 54 Armor Pen into 132 Armor Pen is good, but it's going to leave most melee characters quite squishy, and this build doesn't even slightly address that with armor/MR/HP/Life Steal, and it dedicates 19 points to offense to steepen that climb, and 3 weapons, not counting boots. Good in theory, but not necessarily as game-breaking as it sounds.

This also doesn't go into full effect until you've struck the enemy 4 times, thanks to Black Cleaver. Most melee characters will have to burn their skills charging up Black Cleaver, and won't get the full effect of this.