This creature can't block.
Sacrifice a creature: Put a +1/+1 counter on this creature.
Stinking of rot, it leaps between gravestones in search of its next meal.
Illustrated by Brian Snõddy · Scourge · #59
There are no rulings for Carrion Feeder.
, Sacrifice another creature: Put a +1/+1 counter on this creature.
Sacrifice this creature: Put a -1/-1 counter on target creature.
, Sacrifice an artifact or another creature: Put a +1/+1 counter on this creature.
Menace (This creature can't be blocked except by two or more creatures.)
, Sacrifice another creature or planeswalker: Put two +1/+1 counters on this creature.
Whenever a player sacrifices a creature, you may put a +1/+1 counter on this creature.