When I have both The Black Cleaver and Last Whisper, which will reduce the armor of my enemies first?


The order of the Reduction is as follows:

  1. Armor reduction, flat
  2. Armor reduction, percentage
  3. Armor penetration, percentage
  4. Armor penetration, flat


The same goes for MPen

An example with BC/LW:

Garen with 100 Armor:

100 - 25% = 75 Armor

75 - 40% = 45 Armor(Only you)

45 - 10 = 35 Armor(Only you)

So you will damage garen as if he had 35 armor while everyone else damages him for his 75 Armor.

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  • 1
    @IbrahimApachi - Armor pen cannot take armor to negative; if armorpen > armor value, then it's simply treated as if the target has 0 armor. Armor Reduction, however, can take armor into the negatives (thus multiplying the damage done). This will rarely come up due to a number of factors: reduction is calculated first, reduction is rare, and armor tends to scale naturally on champions to a point beyond all sources of flat reduction. – peacedog Feb 27 '14 at 13:30
  • Are you saying that armor pen can't take armor to negative, but magic pen CAN take armor into the negative? I know that when I have sunfire cloak and armor pen, it doesn't more damage than it says to monsters in the jungle. – dphil Feb 27 '14 at 17:33
  • @dphil He said that Armor can't, and same goes for MR (which means that MR can't either) – user1337 Mar 3 '14 at 23:27
  • My point is that MR can. I'm 100% sure on this. On my junglers, I have sunfire cloak deal more damage than it says on the item. – dphil Mar 4 '14 at 14:17
  • Keep in mind that your jungler item increases your damage dealt to minions by 30%. Aand that's quite a bit. – Jutschge Mar 4 '14 at 14:19

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