Talk:Magic penetration/@comment-85.217.236.201-20121104191352/@comment-93.198.119.165-20121105133802

1)

On a lot of champions magic resistance does increase per level. Check this list for more information.

2)

Magic penetration and magic resistance reduction are applied in the following order: While flat magic resistance reduction can reduce the magic resistance of enemies below zero, flat magic penetration can not.
 * 1) Flat magic resistance reduction
 * 2) Percentage magic resistance reduction
 * 3) Flat magic penetration
 * 4) Percentage magic penetration

Enemies with 30 base magic resistance are treated as having 0 magic resistance with your setup. Enemies with up to 65 magic resistance are treated as having 0 magic resistance as well, though some of your magic penetration is "wasted". But it is still useful for mid and lategame when some champs have higher magic resistance from levels and gear. And do not forget some champions have defensive abilities which boost their resistances.