Phyrexian Blood Craved

Infect (This creature deals damage to creatures in the
form of -1/-1 counters and to players in the form of
poison counters.)
Whenever a creature is put into a graveyard from
the battlefield, you may exile it and put a +1/+1 counter on Phyrexian Blood Craved.
Whenever a +1/+1 counter is put on Phyrexian
Blood Craved, it gains Menace until end of turn.