Blatant Blasphemy

Blatant Blasphemy can't leave the battlefield.
Gods and Demigods get -4/-4.
At the beginning of each upkeep, each
player sacrafices a creature and loses life
equal to the combined toughness of all the sacraficed creatures.
Pay 10 life: Blatant Blasphemy gains all abilities of all cards in the past zone.