Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
There is nothing to describe about single champion build but stupid site requests 300 chars description so ill just write stupid things to become a "Real" description and the build would be marked as "Completed" ... wonder why other sites doesn't want this kind of s**ts ?
AND GUESS WHAT .... what i wrote above is not enough so i wonder ... Magic Penetration Mordekaiser doesn't says it all ?