Birth of the Mitr

(As this Saga enters and after your draw step, add a
lore counter. Sacrifice after III.)
I - Search your library for an artifact card and
reveal it. Shuffle your library, then put the card
on top of it.
II - Artifact spells you cast cost {1} less to cast
until end of turn.
III - Artifact creatures and equipped creatures
you control get +3/+3 until end of turn.