Oxius, Minion of Ruin

Menace, Deathtouch
Acolyte — If this card is in your Command Zone,
you get a poison counter on every player's upkeep.
(A player with ten or more poison counters loses the
game.) If your commander's color identity
includes black when Oxius, Minion of Ruin
enters the battlefield, put a deathtouch counter
and a menace counter on each creature you
control.