Diligent Arcanist

When Diligent Arcanist enters the battlefield,
return up to two instant or sorcery cards from
your graveyard to your hand.
Then, if you don't return any cards to your hand
this way, you may reveal the top two cards of
your library. You may choose a instant or sorcery
card from among them and put it into your hand.
Put the rest on the bottom of your library.
An inattentive mage is a dead mage.