Duskmourn Gravedigger

When Duskmourn Gravedigger enters, choose a creature type.

Whenever a creature you control dies, but a mourn counter on Duskmourn Gravedigger.

Other creatures you control of the chosen type get +1/+1 for each mourn counter on Duskmourn Gravedigger.

Duskmourn Gravedigger can't attack unless there are seven or more cards in your graveyard.