Talk:Magic penetration/@comment-67.183.112.22-20121220233343

Looks like that example needs to be updated for Season 3. I don't really wanna make an account, so if somebody wants to plug this in, that would be swell...

Given 20 flat magic resistance reduction and 30% magic resistance reduction, and the target is affected by 10 flat magic penetration and 40% magic penetration,

Target A has 80 magic resistance.

The 80 is reduced to 56 by your 30% magic resistance reduction.

The 56 is reduced to 36 by your 20 magic resistance reduction.

Your magic penetration makes you ignore 40% of the remaining 36 magic resistance, 21.6 is left.

Your magic penetration makes you ignore 10 of the remaining 21.6 magic resistance, 11.6 is left.

Target A takes damage as if it has 11.6 magic resistance.

Target B has 18 magic resistance.

The 18 is reduced to 12.6 by your 30% magic resistance reduction.

The 12.6 is reduced to -7.4 by your 20 magic resistance reduction

The -7.4 is not affected by any further calculations because it is less than 0.

Target B takes damage as if it has -7.4 magic resistance.