hi, my summoner Name is Newa ( Newa99 ) and mordekaiser is maby my favorite champion and one of my most played mains. he is fun and he owns what more do u wish? :)
i am from Norway so my English inst pro ;) thank you!
is only called the shield.

skill order R-E-W-Q = pwnage
you can easly 1v2-3 and win just you remember to use the ult+ignite combo :D
use all ur spells to farm minios = minon feeded + kill feeded = unstopable and pentakills!!! :D
this build can seem abit expensive, but trust me.. it isnt, if u farm as you should and go for some kills you will have most of the items before the game ends. if not u have face rolled them to much already :)

this rune sett will give you some hp, magic pene and magic resist = win win win!
you can ofc change the runes to get more ap or more amor etc. but this is how i like it:)

the masterys = ap tanking masterys that i loooove to use, more survive ability and more ap + ap pene :) what more you want? dont tryed anything that is more lovly than this on the master of metall.

the amazing and hated the shield, this shield will charge from your spells dmg, so more targets you hit gives more shield.
farming aoe spell, its gr8 this spell will be sent on the next attack. also it will deal massively dmg if there is only 1 target inside the range!
dmging aoe thats flights around, dealing much dmg.. and when u also have a sunfire cape.... arh farming time!! its awesome and charges our shield for a lot ( you can also place it at otter friendly target such as minions)
our so called bread and butter spell. this spell is main dmg spell and main farming spell. this is also the spell that charges most shield. so use when you can in fights and farming.
you will deal much dmg with this aoe spell...
this ulti is unbelievable when combined with your ignite.. i love it, it deals dmg over time and when used, if some one with this spell on is killed, you will get them as ghost for some time.... hold the "alt" key and control it around... use this to hit enemy champions tank turrets etc... owns!!!

with this items you have decent dmg, armor, magic resistance and alot of hp, also you got the slows that will give you and your team easly kills. and the combo of and = insane for morde, mass slow, mass dmg, mass ap! try it out and pwn! :D also if it get to that you have much money, sell the doran`s shild and buy what you want example a guardian angels :D
and remember wards is insane helpfully to get kills and walk away from ganks :)
when it comes to the shoes, the is very Nice :) since your spells is your most dmg, why don`t shorten the cool down? :) you can ofc change this to or

use your spell to git most minons, then you sett the dmg shield on your self and stand in the midle, then you will keep ur shield up witch means you wont take dmg when enemys try to harass you!
if the minions dont die you or you want to get them faster down ( like in early game) use your spell.
wow! all the not ultimate spells can be used for aoe? insane farming champion any way u build him!

mordekaiser is a very strong laner, and can solo lane 1v2 or mid or what ever.
he might be the best 1v2 champion in game. he goes very well with stun/ cc champions, but also with any other champion. remember that you aren't the main tank, you are a AP/dps off tank thing

pros
harraser
farmer
sick dmg dealer
tough as hell ( metall ftw)
shiiield
can carry the whole team if feeded

cons
could be banded in ranked games
sometimes problems with long raged champions before
squashy for long ranged early game.

This is my way to own with mordekaiser, hope you will have so much fun with this as i have.
thank you for looking at my guide open for questions and comments :) please try out and vote ;)