Brass, Time Shifter

When Brass, Time Shifter enters the battlefield,
create a colorless Timepiece artifact token with
"{w}{t} : Exile the top card of your library.
{b}{t} : Exile target card in your graveyard."
{u}{t} : Look at the top 3 cards of your library,
put them back in any order.
You may cast nonland cards exiled by the
Timepiece or with Brass.