Sigil of the Shinigami

At the beginning of each upkeep, choose
one that hasn't been chosen —
•Demons you control get +3/+3, trample,
and deathtouch until end of turn.
•Non-Demon creatures get -X/-X until end
of turn, where X is your devotion to black.
•Whenever a non-Demon creature dies this
turn, you draw a card and lose a life.
"Damn you, shinigami!"