Necropede
Necropede {2}
Artifact Creature - Insect | Power/Toughness: 1 / 1
Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

When Necropede is put into a graveyard from the battlefield, you may put a -1/-1 counter on target creature.
Latest set: [SOM] Scars of Mirrodin (U)