Alter of Sorrow

{t} Sacrifice a Creature: Put a Blood Counter on
Alter of Sorrow
{t} Remove 3 Blood counters from Alter of
Sorrow, Sacrifice Alter of Sorrow: Create a 4/4
black Hive with Vigilance named Shadow Knight
{t} Remove 5 Blood counters from Alter of
Sorrow, Sacrifice Alter of Sorrow: Create a 8/8
black Hive with Flying named Shadow of Oryx