Demented Sorcerer

When Demented Sorcerer enters the battlefield,
look at the top four cards of your library. You
may put one of those cards into your hand and
the rest into your graveyard.
Hollow{4}{u} (Discard Card and pay this card's
Hallow cost and Exile this creature from your
graveyard: Create a tapped Hollow creature token
that's a copy of this card. You may Hallow at Instant
Speed.)