Yorrick is fucking easymode.
9x Armor Pen Marks
9x Mana Regen Seals
9x Cooldown Recuction Glyphs
21-9-0
flash ignite
Laning with Yorick is easy. just folly my Rules to live by and harrass with w as much as possible.
I usually prioritize q and w but i get a level or 2 of e for the lifesteal..
I start with a either a amplifying tome or a sapphire crystal. and build it to a sheen OR more usually build into a tear of goddess for more mana and ability spamming.
I get cdr boots for more spamming.
pretty much get shit done and rape people. full build is usually manamune triforce. with situational tank building. or straight up more dps. like you would a GP or shaco
And thats about it. If you have good communication ult your best ranged dps or aoe dps or if youre alone just ult youself hope to get a kill before dying and kill whoever is left.