I think tank is the right way to build Yorick, especially with his passive that gives you 5% reduced incoming demage for ghoul summoned. Since there will be a lot of spamming tear of the goddess is the right way to go...taking manamune later ofc.
take Wriggles for more lifesteal and better farming which he desperately needs to be usefull.
He can easily 1v1 anyone, very good for chasing your opponents...

If nothing Yorick is rly fun to play :D