Thrazymor, the Burning Plague

Flying, Deathtouch, Menace
Dragon of Torment-{x}{b}{r} Mill X cards from the
top of your library, then you may choose to give
X target creatures either deathtouch or menace
Power in Death-Whenever a creature dies all creatures you control get +1/+1, whenever this creature dies all creatures you control get +2/+2 instead, then shuffle your graveyard into your
deck