Unlock the Shadow Runes

Look at the top three cards of your deck. Exile
two and put the other into your hand.
{3}{b}, Exile Unlock the Shadow Runes from your graveyard: Put a card you own in exile other than
a card named Unlock the Shadow Runes into
your graveyard.
Forgotten {1}{u} - Draw a card (As long as this card
is face up in exile, you may pay its forgotten cost and
turn it face down to use its forgotten effect.)