Eye of Agamotto

You may look at the top card of your library
at any time.
{u}{t}: draw a card.
{2}{u}{t}: Scry 3.
{3}{u}{t}: Return target instant or sorcery from your graveyard to your hand.
{10}{u}{u}{t}: you take an additional turn after
this one. Put a stun counter on Eye of Agamotto.