Armor Penetration

[quote=forzaITApirlo]Since S3 increased the cost of armor while reducing its effectiveness, armor penetration items got a major boost. On an AD Carry, I have started building Beserker's Greaves->Last Whisper before my Infinity Edge or Bloodthirster. However, I have a question: will multiple Last Whispers increase armor penetration further? Imagine a Vayne with her silver bolts ignoring your armor completely with 3 Last Whispers. What a freaky thought.[/quote]

[quote=Luther3000]No, it's unique.[/quote]

[quote=GrandmasterD][quote=Luther3000] No, it's unique. [/quote] This. and also if it would stack; it doesn't stack additively.[/quote]

[quote=FalseoGod]Also, why would you start Last Whisper so early if you're the first to state armor is less effective and costs more? Brutalizer would probably do you a better service.[/quote]

[quote=Sebster10]Rushing last whisper like that is useless.[/quote]