Black Sun's Nadir

({p/b} can be paid with either {b} or {1} and you get P.)
Choose target player and target creature card in a graveyard. If {r}{g}{w}{u} was spent to cast this spell,
that player draws X cards and gains X life where
X is that card's mana value. Otherwise, that player discards a card and you put that creature card
onto the battlefield under your control. Shuffle
Black Sun's Nadir into its owner's library.