Bursting from the bushes, Yorick pops all of his ghouls on top of you, causing you to instantly lose half health and losing the ability to run away. Well shoot, it looks like you're dead. Maybe you should have used your head this time and not have fallen for the same trick that got you the last four times...
Yorick
The Grave Digger
Early game is all about the armor pen. When I say that I mean I want you to get a Brutalizer and not that silly Wriggles Lantern. What Yorick wants and needs the most is armor pen, since he already has sustain from his ghouls and damage from every single one of his
very powerful spells. A successful Yorick can either go bot lane support, and be weak until the late game, or go solo top and be a powerhouse of destruction. Of course, there are some drawbacks of being a solo top Yorick, such as the fact you can't help your teammates much as usually you are down on CS which forces you to stay in your lane. But the pros of being solo top are that anyone who comes up there to try and gank you is in for a death filled surprise, as top lane is your house now and everybody is gunna respect yo house, or die...
Now what I usually make after my Brutalizer is a pair of Ionian Boots of Lucidity, as they reduce my cooldowns by 15% and that helps me push out my ghouls a lot quicker, and more ghouls = more lifesteal and damage. So it's all good in the end. After that I start building a Warmogs and an Atmas, but right now I'm thinking it might be better to build an Atmas first and then the Warmogs, as you need as much damage as possible. After that you're usually in late game, which is where you and your AD carry shine as a team composition. I'll tell you more about this in the skill section. But what you want after your Atmogs is a Last Whisper, as getting your own damage in is imperative to playing Yorick. Then after this I suggest either getting an Infinity Edge or a Guardian Angel, these picks are mostly situational, as you won't need a Guardian Angel if you are owning the enemy team, so just stack as much damage as you possibly can and be the best. Good Luck.
Omen of War
Very good for beating your enemies to death, as you gain a pretty big AD boost with it, plus you go faster and your ghoul does tons of damage. Very good for chasing and beating people to death, great skill.
Omen of Pestilence
When you use this skill anyone who is in the small radius
of this spell gets slowed by quite a bit and then the ghoul that pops out there slows people by an extra amount each time he hits them. It's great to use on a weakened player that might be overextending himself. You'll get pretty easy kills with this spell and it sets you up for your burst of spells which makes it the best spell to initiate with on Yorick.
Omen of Famine
This is your bread and butter, your base spell, the spell you ALWAYS want to get at level 1. This spell is your sustain and without it you are most likely dead. I try to max this skill out the first as it can give back a HUGE amount of HP.
Omen of Death
You read that I was going to explain why you are your AD Carry's best friend and vice versa, right?
Well, this spell is why. It's basically a clone spell that makes a clone of whoever you choose, now you can see why it's good with AD Carry's, eh? I'll tell you a quick story about this spell.
I was in a game with an AD Sion and it lasted pretty long. As anyone who has encountered Sion has noticed that he basically gains 1 AD per kill on anything. So by late game, our Sion had about 500 AD. This was great for us because he could hyper carry. But the enemy team started to notice and focused him a lot. Now being the cool dude that I am, I realized that if I cloned him, then we would do tons of damage. This also helped against the focusing (somewhat), as if the person you cloned dies during the spell, they get to control the clone. This means they might be able to take down one hyper carry, but the second one, the clone, is about to chop them all into little itty bitty pieces.