Arcbound Worker
Duel Decks: Elspeth vs. Tezzeret — common
Artifact Creature — Construct
Arcbound Worker rulings:
2006-09-25: If this creature gets enough -1/-1 counters put on it to cause its toughness to be 0 or less (or the damage marked on it to be lethal), modular will put a number of +1/+1 counters on the target artifact creature equal to the number of +1/+1 counters on this creature before it left the battlefield.