Minerva, Estranged Keeper

When Minerva, Estranged Keeper enters the battlefield, separate your library into two face down piles. (lands and nonlands) Then shuffle those piles. They are both treated as your library. If you would draw a card, you may choose to draw from either of the two piles instead.
Pay 2 life: Draw a card and reveal it. If it is a nonland card, create a 2/2 black zombie creature token. If it is a land card, add {b}{b} t