So with Yorick just being released, I've played a few games with him and this seems to be the best build. Gives your summons a good amount of health, as well as yourself. This is my 1st build, so go easy and if you have any suggestions then feel free to post them.

I get AD Marks & Quints just for an early game bonus to halp get a kill or too. Yorick really needs to be fed for this build to work. Armour and Magic resist are just to make him more durable.

Standard Tank masteries, you could go 21-0-9 and just build tank items, but this seems to work the best for me.

With Boots of swiftness you can get the upper hand when chasing your enemies down. Constantly using Pestilence & War whenever you can.

Warmogs, Atmas, and Aegis give you lots of health, and some nice damage to go with it.

Tiamat will give some nice damage, along with HP and MP Regen.

Frozen Mallet & LAst whisper are just to make catching up with someone and killing them alot easier. Along with the Mallet giving you extra HP for Atmas.

I usually get Clarity, and Ghost, or Clarity and Exhaust. This allows you to say in the lane longer and be able to runa way if need be.

So, I hope this build isint terrible, and if it is, Let me know in the comments how i can improve it.