This Build Creates a mess to clean with job of Yorick, if you get it working.
With Skill you get Tons of Kills without working, Letting Ghouls do the job while you are at sunny beach taking sun.

Runes what i am taking gives me Health bonus for surviving and Nice damage boost with Crits.
That Will let you do lethal damage in end with Q skill with crit.
What else i can tell about this?
Change is always to change mage resist Runes to CD reduction wich gives additional skill casts.

Masteries can be changed how its wished always.
That just works well on me

This is most intresting part on me, Items.
Frozen mallet is good for extra healt to sure your survival, That all damage to maximase your Damage with hits and skills, he's Full AD skill champpion.
That Occult isnt good if you cant get your game going well, With full stacks and trinity force on to, you'll are like Hurricane, cant be catched but can catch.
And GA is regular, if you die with nuke attacks, No worries, come back and show then How its Should be Slashed
and Build Should be Modified depending is there What kind enemy team, AP or AD, Disable, Nuke, etc

Have Fun to try This Build and Give Hints how i Should change this build and in what way.