Grieve, Undead Hivemind

Shroud
{t}, Sacrifice Grieve, Undead Hivemind: Put
target creature card from a graveyard onto the
battlefield under your control. That creature is
a Zombie in addition to its other types.
{3}{b}, Discard a creature card: Return Grieve,
Undead Hivemind from your graveyard to the
battlefield tapped.