First of all, this is my first guide/builed I've posted so take it easy on me ;). Mordekaiser is a tanky DPS character (atleast how I play him) with a solid DPS and he's a great farmer.

For items you start of with a and a . you're going to try to stay in the lane for as long as you can before you die or have to go back. When you're back at spawn you'll buy and if you can afford one or two , this is my start to a quick . As soon as you're done with your you'll upgrade your to , that magic pen is great early-game. After you get your shoes you'll want to start farm as much as you can so that you can get your . After this you'll get or becuse of the lack of CC you have as Mordekaiser, either works but I prefer because then I can slow them from a distance.

After you have these items you'll get whatever that is goos againt the other team. If they have a strong caster team you'll might just want to buy or if they have a strong physical team you'll get

PROS
-Great farmer.
-Good surviability.
-A self heal with good DMG.

CONS
-No CC without items.

I go 21/0/9 because that 5% extra DMG is awesome and you don't really need to go down the Defensive masteries since you're already very durable and you shield can absorb lots of DMG.

greater seal of vitality

is for the early magic pen that helps a lot early-game with a first blood and just a bit extra DMG.

greater seal of vitality so that I get a bit more durable.

For glyphs I take so that I can put out more DMG and get my shield up faster.

And finaly for quints I get to be able to stay in the lane for longer.

The summoner spells I play with is and . The is a must have since it's a great combo with your ultimate!
can be replaced with or but is still prefer because it can help you catch up to enemies and it gives you incedible mobility.

So as said this is my first guide/build ever made and I hope you learned something from it, this build have given me a ton of kills and a lot of wins to. And I would love any comment, good or bad :)