Yorick, Shepherd of Souls

When Yorick is on the battlefield each time a creature die create a grave token
{t} : remove all grave token for each create a 1/1 black zombie for every 4 token create instead a black zombie general 4/4 with deadtouch

Yorick power is equal to the number of grave you have

When Yorick is you commander zombie you control gain +1/+1 counter and can be cast from your graveyard for : {1}{b}