W, while having a long CD and not having as much damage as your E, gives a decent amount of armor and magic resist, which helps you take less damage while still dealing a lot. Also, if you spam your E too much early on, you end up burning a lot of health.

Summoner spells could use a bit more explaining, but still a good guide.
I'm kinda questioning the alternating W and E skill sequence though. W is nice and all but the CD is pretty long even when its maxed. I personally like maxing E since I can use it three times in 24 seconds compared to W with both at rank 1. At max rank I can still do two Es in 12 seconds compared to W. Also if you do the math,

Two Es= 500 base damage + 120% of AP(60% x 2 uses)
One W= 80mdps x 6seconds= 480 base damage + 120% of AP(20% of AP x 6 seconds)

Also W takes six seconds to do full damage, while E is instant burst. That's about the only thing I find questionable. The rest is good.

Outdated. -1 for now

^ trollvote. You should read the comments on his guide if you're in for a laugh. Sorry about the negative vote, I think you're build is fine the way it is :)

It works for you, it's your build.

If you're getting DFG, get a deathcap before.

Don't get rylai's on a pure ap build, and don't rush WotA.

Also, if you're going AP, go armor seals or health/lvl seals, don't go hp5.

Edit: Don't start doran's shield, start boots, and don't go heal/ignite, go flash+something.

Flash+Ghost is my recommendation.

I love this build! New with Mord and i've done the best with this one so far.

^

Hey man, thanks for the conversation about the feedback I gave. I think it's alright that you've got the heal spell since you said you use it in 3v3s but prefer the flash spell in 5v5, so that makes sense. Maybe you could create a whole section in your guide specifically for TT? And I agree with the comment above that a Change Log section would be really good for you as you tweak your build :) Helps you keep up with your progress. +1

Replace Heal with Flash
A section for change log would be helpful to see your progress

I have to agree with a couple of the comments above. I know you're trying to build a pure AP build, but you contradict yourself by throwing in a Warmog's as the last item. You suggest two other items in the guide as alternatives for the Warmogs...why not just use one of those in the official build at the top of the page and then suggest Warmogs as an alternative in the guide?

Also, heal spell is not necessary for a great Mordekaiser player. Ignite, yes, absolutely. Heal should be replaced with a spell that aids with movement, such as Ghost or Flash, even Exhaust if you want. He's one of the slowest characters in game and has no ability that aids movement, like Teemo's move quick, etc.

A few grammar and spelling errors, also. Would love to change my vote to a +1. :)

Hope any of this has been helpful to you!

hihiihi good build