Armor Pen vs Armor Reduction vs Armor Piercing?

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Airoe

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Member

03-25-2010

My question is which applies first?

Armor Piercing = the 6 armor piercing from the Sunder mastery (this could just be another way of saying penetration, but for complete clarity I'm asking about it separately)
Armor Penetration = armor pen runes, the Brutalizer, Stark's Furvor, Last Whisper
Armor Reduction = the 60 armor reduction you can apply to a target from The Black Cleaver

Also, specifically for Armor Penetration, which item applies first? Last Whisper > Starks > Brutalizer?

Thanks in advance.


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wildfire393

Senior Member

03-25-2010

First, any reduction effects (Cleaver, Stark's, Abilities) apply. This can reduce armor below 0.
Then, any % penetration effects apply (Last Whisper).
Finally, any flat penetration (including Sunder) applies.


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Garborg2

Junior Member

03-25-2010

From first sticky threaded in this forum:

Quote:
Q: What order is armor penetration/MR penetration applied in? (Credit to TiberiusAudley)

A: From top to bottom

Armor/MR Reduction
% Based Armor/MR Penetration
Flat/Linear Armor/MR Penetration


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Airoe

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Member

03-25-2010

Quote:
Originally Posted by Garborg2 View Post
From first sticky threaded in this forum:
So can all types force an enemy below 0 armor? I ask because I tested on creeps and no matter how much flat armor penetration I had, the most I could ever damage someone was +2 damage over my current AD.


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wildfire393

Senior Member

03-25-2010

Quote:
Originally Posted by Airoe View Post
So can all types force an enemy below 0 armor? I ask because I tested on creeps and no matter how much flat armor penetration I had, the most I could ever damage someone was +2 damage over my current AD.
No, only reduction. Penetration of any variety is capped at 0.