Skills, how to use them, and Skill Order

I recommend using smart cast for playing Mordekaiser. If you want to figure it out, google it. Too lazy to explain how to enable it.

Your passive, Iron Man, gives morde a shield that lowers it's health over time. It will absorb ALL damage you take until it reaches 0. This is what makes Mordekaiser. Pretty much if you build more ability power, the tankier you will get, and longer you will last in fights.

You want to max Siphon of Destruction first, as it gives you the ability to harass, and gain you're shield in big team fights. Your Siphon of Destruction will be you're main farming tool, as after you get enough ability power, you can one shot caster minions, and even melee minions after deathcap!

You're next ability you want to max is you're Q, Mace of Spades. It is pretty much you're late game AoE nuke or single target nuke, depending on the situation. For example, if you are only after 1 champion, you want to make sure no creeps are in the way. You would Siphon of Destruction them 1st, and you're Mace of Spades would do DOUBLE the damage. Always keep in mind that you're Mace of Spades goes to 3 other targets, so if you aren't in range of someone to deal the finishing blow, simply hitting a minion or champion next to you could just score a kill.

You're last ability you want to max is you're w, you're Creeping Death. It gives you amazing resistances, and the slow it gives when you have your Rylai's Crystal Scepter on you're tank when they go in is pretty crazy. It doesn't do much early game as you aren't leveling it, but with enough ability power you will be doing damage people don't expect over time.

Children of the Grave, you're R, you level at 6, 11, and 16. It is great to use Children of the Graveon the Ranged carry, however, chances are late game it'll be hard to get a ghost of the ranged carry due to the quick silver sash and how far away he will be and unsafe to get to. Using Children of the Grave on Tanky Dps, or even a AP caster, is always a fine idea, as each hit the ghost does adds on to Mordekaiser's shield, which means you never die!

ALWAYS REMEMBER TO USE YOU'RE Children of the Grave IF YOU'RE ABOUT TO DIE! THE ABOUT OF HEALTH YOU GAIN THROUGH ABILITY POWER AND SPELL VAMP IS CRAZY!