Originally Posted by tmacandcheese
Armor pen hasn't worked at all for me. The reason for this is because his W and E spells both scale off of AD, but deal Magic damage. I go with magic pen reds, mana regen blues/yellows for spammability, and flat hp quints, allowing me to stay alive longer. Max out E first, W second, Q last, but having a level in each by level 4. It dominates
See, the problem is that too many people don't understand that your damage is NOT coming from magic damage. The majority of your damage is Q, auto attacks, and Ghouls/Revenant.
If you are laning with Yorick YOU NEED APen
10 MPen is the equivalent of ~5% less damage reduction on your two (weak) nukes. Compare this to the 15 APen you COULD have which is equivalent to approximately 15% less DR (sometimes more) for ALL your physical damage including ghouls.
Maxing out W first is also more efficient, providing you with a relatively strong gap closer and AoE at a rather cheap cost (the majority heal from E comes from proper timing to allow the ghoul to damage).
QWEW is likely the BEST way to level yorick's abilities because of his lack of gap closer and reliance on farm to be effective. Play him as a wrecking ball, Ult yourself or your carry and target the squishiest target in range. Under majority circumstances your ghoul WILL attack what you attack (I've been testing in custom games). That means that with 3 ghouls and a revenant even WITHOUT defensive items (only health) you have respectable DR and good damage especially against squishies. That means that you become a high threat target for the enemy team when you play correctly.
In other words:
2) Level your Gap Closer
3) Ult is not ALWAYS best on your carry
4) Play like a wrecking ball not a mage
edit: If you intend to jungle yorick I recommend Stonewall's newest video guide. In which he DOES use AD runes for both reds and quints. however that's for jungle efficiency not late game.