Fall of Rakdos

All creatures you control get +1/-1 until
end of turn.
Creatures you don't control get -1/+1 until end
of turn.
Whenever a creature you control dies, you
draw a card and target opponent loses
life equal to the creatures power.
Draw cards equal to your devotion to black.
Flip a coin, win place Fall of Rakdos two from
the top of your library. Lose, shuffle Fall of
Rakdos into your library.