Surrender at 20: Q&A: How does Flat Armor and Percent Armor Penetration stack?

Q&A: How does Flat Armor and Percent Armor Penetration stack?

Posted on April 22, 2011 at 11:54 AM by Moobeat

This is one question I get emailed frequently, so when the opportunity comes to intertwine a commonly asked question and a red post; I just have to take it. This weeks question deals with the different between Flat Armor and Percent Armor penetration as well as how the two interact with each other. Keep this small synopsis in mind next time you are gearing out your AD carry for maximum effectiveness.

Flat Armor Penetration: Flat armor penetration is applied directly to your attacks and physical abilities. These attacks will deal damage as though your target has less armor than he really does, but will never bring an opponent below 0 armor. For example, if a target has 20 armor and you have 5 armor penetration, you would deal damage as though the target had 15 armor. If you had 50 armor penetration against the same target, you would deal damage as though he had 0 armor.

Percent Armor Penetration: Percent armor penetration applies its benefits after flat armor penetration. For example if you fight a target with 120 armor while you have 20 flat armor penetration and 40% armor penetration, you would deal damage to your target as though he had 60 armor.

Only armor reduction can take effective armor to negative values and deal bonus damage

- EncasedShadow, Customer Support Extraordinaire, via the official EU forums.

19 comments

Danny MurphyApril 22, 2011 at 12:19 PM
Useful stuff mate cheers
ScrogglezApril 22, 2011 at 12:21 PM
Good news - kinda reminds me of when in WoW , whne a warrior would build stats into Arm. pen!
edApril 22, 2011 at 12:21 PM
my body is ready
LeestanderApril 22, 2011 at 12:24 PM
where do you find all news? do they got their own blog or something?
LaurentApril 22, 2011 at 12:24 PM
Very informative! Thanks.
KanedaApril 22, 2011 at 12:25 PM
thanks for the tutorial, always trying to learn more about this game.
AnonymousApril 22, 2011 at 12:53 PM
Theorycrafting :) half the game
AnonymousApril 22, 2011 at 1:02 PM
http://newhypertech.blogspot.com/

Hey I have been following your blog for quite sometime and would love feedback on mine from a such an expert blogger and poster.

I really love all this stuff, I hope you feel the same way about mine.

Thanks,

James
SeanApril 22, 2011 at 2:08 PM
This was played at CebiT IEM wasn't it?
MoobeatApril 22, 2011 at 3:26 PM
@Leestander

I read through most of the red posts the occur on the forum every day and try to cherry pick the most informative ones. 75% of them are funny, casual, or jokes but a good amount of them give hints into chacacter development, rewords, buffs/nerfs, and upcoming content. Couple this with twitter and other social media that rioters post on and this is where I get most of my news.
Aaron M. GipsonApril 22, 2011 at 4:40 PM
As sad as it sounds, I actually had no idea how armor in this game stacked at all until now...
King ElysiumApril 22, 2011 at 4:48 PM
Thanks for the info! I had no idea how flat amour worked!
JimApril 22, 2011 at 5:03 PM
Trying to learn some stuff about LoL, its confusing.
JayApril 22, 2011 at 5:36 PM
good to know...
CandleintheDarkApril 22, 2011 at 6:08 PM
This is really interesting bit of game mechanics
Blog HuntApril 22, 2011 at 10:19 PM
LoL is the best game ever!
ZombieApril 22, 2011 at 11:18 PM
that could be an awesome pick up line! Allow me to penetrate your armor! ;D
Stef PelgrimsApril 23, 2011 at 1:40 AM
wouw good to know, never understood that (in wow than)
AnonymousApril 24, 2011 at 7:53 AM
ok, while I understood what he meant in his percent APen example, he choose very bad numbers to describe it.