The Eternal Sacrament

Whenever an Angel, Demon, Devil, or God
creature you control attacks, look at the top
five cards of your library. You may put from
among them an Angel, Demon, Devil, or God
creature card onto the battlefield tapped and
attacking. Put the rest on the bottom of your
library in a random order. Then if you control
five or more Angels, Demons, Devils, and/or
Gods, sacrifice The Eternal Sacrament.