Phyrexian Scriptures

Phyrexian Scriptures {2}{B}{B}

Enchantment - Saga (CMC 4)
(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I -- Put a +1/+1 counter on up to one target creature. That creature becomes an artifact in addition to its other types.
II -- Destroy all nonartifact creatures.
III -- Exile all cards from all opponents' graveyards.