Bayaz, First of the Magi

When Bayaz, First of the Magi enters the battlefield, look at the top four cards of your library. You may reveal one of those cards and
put it into your hand. If you do, Bayaz, First of the Magi deals damage equal to its converted
mana cost to any target.
"Power makes all things right.
That is my first law, and my last.
That is the only law that I acknowledge."