Darlo, Death's Bane

{0}: Exile Darlo, Death's Bane until end of turn.
{w}{w}: Put target black permanent on the
bottom of its owner's library.
{u}{u}: Put target black spell on the bottom
of its owner's library.
{r}{r}: Chose a non-black instant or sorcery
in your graveyard at random. Put it on top of
your library.
{g}{g}: Put target non-black permanent card from
your graveyard on top of your library.