Talk:Magic penetration/@comment-72.227.184.9-20110709022956

The description of how magic penetration is calculated neglects to mention what occurs once the enemy's magic resistance would call below zero. Since magic resistance reduction is calculated first, does that mean excess magic penetration goes to waste? For instance, if I have an Abyssal Scepter and Sorcerer's Boots, and my enemy has 30 magic resistance, the Abyssal Scepter reduction is calculated first, leaving 10 Magic Resistance for the Sorcerer's boots to penetrate. Now, my question is, do the Sorcerer's Boots reduce my enemy's magic resistance to -10 or only to 0 in this scenario?