Flesh-Eater Imp is a uncommon Creature — Phyrexian Imp card from Mirrodin Besieged (MBS), collector number 42. Current market price: $0.30 (foil $1.50), TCGplayer market prices via Scryfall.
Flying Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) Sacrifice a creature: This creature gets +1/+1 until end of turn.