Talk:Armor/@comment-50.137.99.187-20130130192543/@comment-72.229.239.164-20130215075250

Actually he doesn't. Just because the difference in the %damage multiplier is larger from 0 to 100 armor (50%), as it is from 100 to 200 armor (16.66%), doesn't mean you are getting reduced returns in your survivability because of Effective HP.

As stated in the wiki article, simple math shows that you can calculate your effective HP by multiplying your HP by (1/Damage Multiplier).

So a champion with 1000hp and 0 armor has effective HP of 1000 (because the damage multiplier = 100 / (100 + armor), which in this case is 1).

That same champino with 1000hp, but 100 armor has effective HP of 2000. With 200 armor, the effective HP is now 3000.

If you imagine you are being attacked by an enemy with 100 attack damage, you can see that with every 100 armor you add, it will take 10 more hits to kill you.

If you focus on the Damage Multiplier (or reduce damage % as you call it), you can be fooled by a change in a percent seeming smaller, but thinking it in terms of effective hp in a real game scenario, as well as understanding some basic math, will allow you to see the truth.