Shadow Box

{2}{t}: Flip a coin. If you win the flip, create
three 1/1 black Shadow token creatures.
Flip a coin. If you lose the flip, sacrifice
Shadow Box.
Sacrifice Shadow Box and six Shadows:
Search your Library for a Demon or Black
Planeswalker card. Put it in your hand.
Shuffle your library.
Lil' Shadows add up to Darkness! 4, 5, 6, dead!