Fallen Colossus

Fallen Colossus costs {1} less to cast for each
permanent card in your graveyard.
Whenever one or more permanent cards leave
your graveyard, each opponent loses 2 life.
Unearth {3}{b}{g} ({3}{b}{g}: Return this card from
your graveyard to the battlefield. It gains haste. Exile
it at the beginning of the next end step or if it would
leave the battlefield. Unearth only as a
sorcery.)