Soooo Last Whisper vs The Black Cleaver

[quote=NinjaGinge]haha, well sorry for inducing your rage gentlemen. I have been thinking about it in different contexts so I suppose it was my mistake for posing the original post as a linear question when it was never quite intended to be. Was more so a community question. Oh well, I've run so many different scenarios with the numbers I can't really say I've learned a whole lot new here, but thanks regardless for the responses and explanations. I'm sure they'll come in useful in the future.[/quote]

[quote=BusDriver210]No rage here just trying to keep the forum from being flooded. Sorry if it came across as agro, hope you got the information you needed![/quote]

[quote=DuffTime][quote=Hateryx] Let me do the honor. Source: http://www.mobafire.com/league-of-legends/build/pwndo-rocking-it-out-to-pwndoism-updated-113745#chapter19 [quote]Let's talk about Last Whisper first: So this thing goes through 40% of the enemies armor. Alot, you think? WRONG! Let's compare it to other common and less common Armor pen and shred items, being The Black Cleaver, Zeke's Herald and Youmuu's Ghostblade and the effects on some typical enemies you'll come across... The Black Cleaver: Shreds up to 45 armor. Lategame, a glasscannon Graves has 72,6 Armor flat + 30 from max stacks of his passive = 102,6 Armor. The Black Cleaver reduces it to 57,6 Armor. Pretty Decent Reduction. Now the Last Whisper: grants 40% Armor pen. Taking Graves 102.6 Armor - 40% of it = 61,56 Armor. "WUTT?" You may ask. "Cleaver shreds more?" Yes it does. So, when you have to chose between buying The Black Cleaver and Last Whisper, you first need to know the "Sweet Spot" of Last Whisper, when it will penetrate more than Cleaver can shred. 45 Armor Shred of Black Cleaver / 40% Armor Pen of Last whisper = 112,5 Armor The "Sweet Spot", the exact number of Armor the target must have in order for Last Whisper to be more effective than The Black Cleaver is 112,5 Armor. When the Target has 112.5 Armor or more, it is more beneficial to buy Last Whisper in terms of Armor Pen. The "Sweet Spot" for Youmuu's Ghostblade is 50 Armor. The target must have 50 or more Armor for Last Whisper to be more effective than Stark's or Ghostblade. [/quote] [/quote] Even this post is just not a comprehensive enough evaluation. How much armor pen do you have in your runes? 0? 15? 25? Masteries? 6 more? And 10%? What skills do you have that pen or reduce armor? Is their taric going to change their armor value come teamfights if he holds his shatter? etc etc etc etc...[/quote]