Progenitor Starship

Hellbent— If you have no cards in your hand, you
may pay {1}{u}{u} and put this card from your
sideboard into your hand.
Whenever a nontoken creature enters the battlefield, look at the top X cards of your library,
where X is that creature's mana value. You may
reveal an artifact card from among them, put it
into your hand, then put the remaining cards on
the bottom of your library.