Yorick's basic attacks only deals 90% AD physical damage. Periodically summons untargetable minions to fight in your side. Each minions has unique effects, they last for X seconds and will attack who Yorick attacks or attack him, prioritize enemy champions.
Upon taking fatal damage, Yorick's minions rush against closest enemy champion for 5 seconds before disappearing.
Grave Digger: Whenever an champion die near Yorick, it leaves a grave for 20 seconds in the location. Enemies can destroy the grave by standing on it for 1.5 seconds. When Yorick reachs a grave, he summons a random minion.
Unholy Covenant grants a self-buff while Yorick has active summons.
Omen of War
COST: 0 mana
Active:Yorick calls the targeted minions, then he throws it to the enemy, dealing magic damage and apply a bonus effect, based on the minion. The minion will attack that target for 5 seconds, regardless the range and commands from Yorick.
"Green" Zombie: The minion grabs the enemy, slowing them by 30% / 40% / 50% / 60% / 70% decaying over 2.5 seconds.
"Red" Ghoul: Heals Yorick by 2% of his maximum health. Tripled if used against champions.