Hello MetaMushRoom from Eu here! yes I changed my nickname ^^
Yorick is very devastating offtank when fed. But he is very item dependant.

Story:
The work of gravediggers is essential amongst the living, but invaluable in the Shadow Isles. There are many shades of death there, and each is embraced rather than feared or reviled. One can only ascend from one state to the next with the magical aid of a skilled professional. At the end of the first Rune War, Yorick Mori made his living as a gravedigger. His family owned and maintained the Final Rest Memorial, one of the oldest cemeteries in Valoran. The shovel he employed for his work had been passed down for generations. Each gravedigger taught his son that this shovel was imbued with the spirit of every forefather, and that those spirits would protect him during the long lonely nights amongst the tombstones. To his eternal regret, Yorick died without an heir, bringing the proud Mori line to a close. His body was interred with his shovel in the family mausoleum, and the Final Rest Memorial soon fell to ruin. Death, however, was not the end Yorick had expected.
Yorick emerged on the haunted shores of the Shadow Isles – not quite dead, definitely not alive – still clutching his beloved shovel. He soon learned that with it he could act as a ferryman for the Isles' undead denizens, helping them climb death's many-tiered ladder. This proved a curse, as a gravedigger must "bury his quota" before he too can ascend, or so the legend goes. No one knows what "his quota" is. Yorick dug tirelessly, waiting in vain for the day when he would be freed of his burden. As decades turned to centuries, the shame of his failures came to a head. He returned to Valoran to find his corpse, convinced that salvation might be buried with it. When he arrived, no trace remained of either the mausoleum or the memorial. Hope nearly lost, he discovered the League of Legends, and there saw an opportunity to immortalize the family name he allowed to be forgotten ages ago.

"Die first, then we’ll talk." -- Yorick

Pros
-E gives you natural lifesteal allowing you to jungle!
-High dps
-High base hp
-If you die you almost always get the kill thanks to your ultimate
-Good pusher

Cons
-Not very good harasser
-lack of survivability ability
-ghouls die instantly without hp items

Greater mark of desolationYou are dps so you need these for sure!
Makes opponents hit less often and can save your *** couple times.
You need mana regen early game thats why flat mana regen runes.
greater quintessence of desolation If you want to maximize your damage take these.
If you want to be lil more beefy early game take these.

When the game starts grab and 2x . Try to farm so that you can affor for and on your next trip back but if you cant dont worry. When you have aquired you must decide will you take or . Take IF Enemy team is CC / Mage Heavy,
else