Epoch Tomb

Spells cost {1} more to cast for each prophecy counter on Epoch Tomb.
{4}: Put a prophecy counter on Epoch Tomb and create a 1/2 black Mummy creature token with deathtouch.
{8}: Create a legendary 8/8 colorless Golem artifact creature token named Epoch's Grave. Activate this ability only if there are four or more prophecy counters on Epoch Tomb.