Necroskitter is a rare Creature — Elemental card from Lorwyn Eclipsed Commander (ECC), collector number 48. Current market price: $0.31, TCGplayer market prices via Scryfall.
Wither (This deals damage to creatures in the form of -1/-1 counters.) Whenever a creature an opponent controls with a -1/-1 counter on it dies, you may return that card to the battlefield under your control.